The Long Game | Dr Alex

If your doctor says your blood sugar is "normal", that word is doing more work than you think. Normal just means you haven't crossed the line into diabetes. It was never meant to tell you that your level is safe, especially once you're over 60. Research from the UK's Epic Norfolk study found that the risk of death from heart disease and all causes rises steadily as blood sugar increases, and that rise is already visible well within the so called normal range. Another study followed older adults without diabetes and found that those with a higher average glucose had a higher risk of developing dementia, even at levels most doctors would happily call normal. As we get older our muscles become more resistant to insulin and the cells that produce it gradually lose some of their reserve. That's why so many people drift upward after 60 without ever feeling a thing, while ageing blood vessels and an ageing brain become more vulnerable to the damage that raised glucose can cause. But here's the twist. Lower is not always better, and how you get there matters just as much as the number itself. A major trial called Accord tested this directly. One group of people with type 2 diabetes aimed for a near normal blood sugar using whatever medication it took. The trial had to be stopped early because that group had a higher risk of dying, largely from dangerous drops in blood sugar that led to falls, heart rhythm problems and worse. This is why a low number reached naturally through food, movement and better sleep is a very different thing from a low number forced down by medication. If you don't take diabetes medication, the levers are in your hands. Whole foods, regular movement, resistance training and good sleep all help keep your blood sugar in a genuinely safe range. If you do take medication, your target should come from your own doctor, not from a video. Chasing a lower number on your own can be dangerous. I go through all of this properly in the full episode, including the actual numbers to aim for depending on your situation. The full list of research references is in the description of the YouTube version of this video. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #bloodsugar #preventativehealth

Leaky gut gets a bad reputation because of all the nonsense sold under that name, but the lining of your gut is a genuine barrier between the outside world and your bloodstream, and certain everyday foods do seem to wear it down. In this episode I go through five of them, starting with the strongest human evidence and moving towards the more uncertain, lab based findings. Gluten only damages the gut lining in people with coeliac disease, which is about one in a hundred of us, so get tested properly before cutting it out. Processed meat is linked with a higher risk of bowel cancer, and the compounds formed from the heme and nitrites in it seem to thin the gut barrier and speed up cell turnover in the lining. Emulsifiers found in ice cream, sauces and many ultra processed foods have been shown to thin the protective mucus layer and shift gut bacteria in the wrong direction. Artificial sweeteners changed gut bacteria and blood sugar responses in a human trial, though the evidence for direct damage to the gut lining itself is still mostly from cells in a dish. And diets low in fibre, the picky bit style platters so many of us reach for, starve the bacteria that make the fuel your gut lining cells actually need. I also talk about regular anti inflammatory painkillers like ibuprofen, which can cause silent erosions in the gut lining if taken often without medical supervision. The full list of research references is in the description of the YouTube version of this episode. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #guthealth #preventativehealth

Can you split your sleep into two chunks and still get the same benefits as one solid 8 hour night? In this one I go through what actually happens when researchers split people's sleep into two blocks, why your body wants a dip in the early afternoon, how long a nap should actually be, whether a nap can make up for a short night, and what napping means for your heart, your brain and how long you live. The short version is that your brain seems fairly relaxed about how your sleep is packaged, as long as the total across 24 hours is enough. Your metabolism seems to prefer that sleep comes mostly at night though, which is an interesting split. The full list of research references for this episode is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #sleep #healthpodcast

If you take a statin, you are in very large company. Something around a quarter of people in the UK over 40 are prescribed one, often after a quick appointment with little explanation of what the tablet actually does or why cholesterol rose in the first place. In this episode I explain exactly what a statin does inside your liver, why your CoQ10 blood level can drop without your muscles actually being short of it, and why aching legs are so often blamed on the tablet when trials like SAMSON and StatinWISE found people reported the same symptoms on a placebo as on the real drug. I also cover the genuine warning signs of muscle damage from statins, which are rare but important to recognise, including severe weakness and dark urine. Then we get into why cholesterol goes up in the first place, from genetics to thyroid problems to insulin resistance, how big the real benefit of a statin actually is once you look at absolute numbers rather than just the relative ones, and the one thing that beats almost everything else we discuss today, which will not cost you a penny. Please do not stop taking any medication because of this episode. Statins and lifestyle work hand in hand, and any decision about stopping or changing your treatment should always be made with your own doctor. The full list of research references is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #statins #heartdisease

Your blood pressure is supposed to fall while you sleep. In a healthy person that dip is somewhere between 10 and 20 percent, and it is one of the main windows your heart, arteries and kidneys get to recover from the day. In this episode I explain what should happen to your blood pressure overnight, why your kidneys are working a full night shift to clear the salt you ate during the day, and why losing that dip is linked to a far higher risk of heart attacks and strokes over the following decade, even if your daytime reading looks perfectly normal. I go through the research on non dippers and reverse dippers, why the morning surge in blood pressure lines up with when heart attacks tend to happen, and the symptoms that get written off as normal ageing when they might actually be worth paying attention to. That includes getting up repeatedly in the night to pee, morning headaches, unrefreshing sleep and signs of sleep apnoea, which is one of the most common and most treatable causes of a blood pressure that never settles overnight. I also cover what you can realistically do about it, including how ambulatory blood pressure monitoring works and why it gives a much fuller picture than a single reading at the GP surgery. The full list of research references for this episode is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #bloodpressure #heartattack

Could just 10 minutes of gentle exercise a day really help your blood pressure, your sleep and how your muscles make energy as you get older? That is the idea behind zone 2 cardio, and in this episode I explain why it has become one of the most talked about forms of exercise for anyone over 50. I walk through what zone 2 actually means using the simple talk test, what is happening inside your muscles and mitochondria when you train this way, and why a classic bed rest study from the 1960s still shapes how we think about fitness and ageing decades later. I also cover a large study from Taiwan looking at daily exercise and risk of dying during the study period, a newer trial on structured exercise in people aged 45 to 64, and why the science around zone 2 has run a little ahead of the evidence in some corners of the fitness world. I share where I think zone 2 genuinely earns its place, including my own experience with injury from pushing too hard with intervals. As always, I explain when to stop exercising and seek medical help, and why building a sustainable habit matters more than chasing the perfect routine. The full list of research references for this episode is in the description of the YouTube version of this video. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #zone2cardio #healthypodcast

After looking after over 50,000 patients in the hospital, the ones who actually worry me most are rarely the dramatic ambulance arrivals. They are the quiet ones who walk in days later saying sorry for wasting your time. In this video I go through seven symptoms that I take extremely seriously as an emergency doctor. A sudden severe headache that peaks within a minute. A face, arm or leg that went weak or numb and then recovered. Indigestion that isn't really indigestion, especially in women, older people and anyone with diabetes. Sudden breathlessness with a swollen or painful calf. Back pain with numbness down below or problems with your bladder or bowels. Sudden confusion in an older relative. And a bump on the head in anyone taking a blood thinner. None of this is meant to scare you. It is meant to help you recognise the moments where waiting it out is the wrong call. The full list of research references I mention is in the description of the YouTube version of this video. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #emergencymedicine #healthsymptoms

The same blood pressure reading can be called perfectly normal in one country and high blood pressure in another. A reading of 136 over 86 would likely be waved off in a UK surgery, yet flagged as stage one hypertension under US guidelines. Same arm, same heart, same blood vessels, just a different line drawn by a different committee. In this video I go through what your two blood pressure numbers are actually measuring, why your arteries stiffen as you move through your 40s and 50s, and why that changes which number matters most. I also look at a large analysis of data from around a million adults, which found that the risk of dying from a stroke or heart attack starts climbing from surprisingly low readings, long before anyone would be told their blood pressure is high. I talk through how UK, US and European guidelines differ on where they draw the line, why a British study of civil servants linked a top number of 130 at age fifty with a higher risk of dementia later in life, and what a major American trial found when people were treated to a lower target instead of the usual one. Finally I cover how to actually take your blood pressure properly at home, the small habits that quietly push your reading up without you realising, and what readings should prompt you to speak to a doctor straight away. The full list of research references is in the description of the YouTube version of this video. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #bloodpressure #heartdisease

As we get older, some of the calcium that should be sitting safely in our bones ends up in the walls of our arteries instead. By the time people reach their seventies, many of them have some calcium sitting around the heart, and that stiffens the artery walls over time. This is exactly why there is a whole industry built around vitamin D3 and K2 supplements, sold together with the promise that they will steer calcium away from your arteries and back into your bones. In this episode I go through what each of these vitamins actually does, what the research really shows, and whether you need to take them together at all. Vitamin D3 is the form your skin makes from sunlight, and it is also found in oily fish and eggs. Its main job is helping you absorb calcium from your gut. In the UK, the recommended amount is 10 micrograms a day, usually from October to March when there is not enough sunlight for your skin to make it. Some people are advised to take it all year round, including those who rarely get outdoors, people in care homes, and people with darker skin. One of the largest trials ever done, the VITAL trial, gave nearly 26,000 adults either 2000 units of vitamin D a day or a placebo for five years. There was no difference in heart attacks, strokes, or deaths from heart disease between the two groups. Vitamin K2 works differently. It helps switch on a protein that stops calcium crystals forming in artery walls. A large Dutch study found that older adults who ate the most K2, mostly from cheese, had lower rates of death from heart disease. But when K2 has been tested as a supplement in randomised trials, the results have been small and mixed, and no trial has shown that it actually reduces heart attacks or strokes. So taking D3 and K2 together sounds logical, but there is no solid evidence that normal doses of vitamin D cause calcium to build up in your arteries in the first place, which is the whole premise behind combining the two. If you want more K2 naturally, good sources include aged cheeses, egg yolks, and leafy greens. The full list of research references is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #vitamind #hearthealth

Around one in five hospital admissions in people over 65 happen because of medication side effects, according to a big government review of prescribing. Yet when someone in their 60s or 70s notices swollen ankles, more tiredness, forgetfulness or feeling wobbly on their feet, the first thing they tend to blame is their age. Sometimes that is right, but often the real cause is sitting in a dosette box in the kitchen cupboard. In this video I go through six side effects of really common tablets, from swollen ankles to forgetfulness, explaining what each tablet is for, why it can cause the problem, and when to get it looked at. We cover amlodipine and swollen ankles, beta blockers and feeling breathless or worn out, prostate and blood pressure tablets causing dizziness on standing, metformin and acid tablets affecting vitamin B12, water tablets and antidepressants lowering sodium and causing muddled thinking, and anticholinergic tablets linked to forgetfulness and brain fog. Please do not stop any of your tablets because of this video. They are prescribed for a reason, and some can be dangerous if stopped suddenly. If anything here rings a bell, have a chat with your GP or doctor who can talk you through what is going on. The full list of research references for this episode is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #medicationsafety #healthyaging

Could a jab you have for shingles also be doing something for your brain? That is the question I am digging into in this episode. Two major studies, including one using a clever natural experiment in Wales, found that people who had the shingles vaccine were around 20% less likely to be diagnosed with dementia over the following years. A separate Oxford study on the newer vaccine found something similar, with the effect showing up in both men and women. But then a much larger study looking at millions of hospital records found no detectable drop in dementia at all. So where does that leave us? Honestly, we do not know yet. Two large randomised trials are now underway in Finland and Denmark that should give us a clearer answer in the years ahead. What I do know for certain is that shingles itself is a serious illness. It can be extremely painful, and if it affects the nerve near your eye it can even cause blindness. I have diagnosed and treated it many times over my career. For that reason alone, the vaccine is worth considering if you are eligible, regardless of any possible effect on the brain. I also talk through what the Lancet Commission on Dementia says about the things we already know protect your brain, like blood pressure, hearing, blood sugar, cholesterol, movement and staying connected to others. The full list of research references for this video is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #shingles #dementia

Is organic food actually worth the extra money, or are you just paying for peace of mind? I went through the research on pesticide residues, what organic actually means as a label, and whether organic fruit and veg is more nutritious than conventional. Some of it reassured me. One part of it still niggles at me. We cover what the organic label legally promises, how your body already defends itself against pesticide residues, why children and pregnant women are given extra caution, and what the biggest studies on organic food and cancer actually found when you look past the headlines. I also explain why glyphosate causes so much argument, which foods I think are worth buying organic, and which ones I do not bother with at all. The full list of research references is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #organicfood #preventativehealth

This summer I watched entire families in Italy and Greece eat completely differently to how most of us eat in the UK. Lots of olive oil, lots of veg, proper bread, beans and pulses with nearly every meal. None of it is low fat. None of it is a diet. It is just what food looks like to them. In this video I talk about why so many of us in the West ended up eating so differently, what the PREDIMED trial actually found when researchers added extra olive oil or nuts to a Mediterranean diet, and why processed meat carries a real but often misunderstood cancer risk. I also give you the simple framework that Steph and I use every day to decide what goes on our plates. Colour at every meal. Something with a bit of crunch. Animals that still look like animals. Beans and pulses daily. All built around one question. Would your great grandparents have recognised this as food. The full list of research references for this episode is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #preventativehealth #mediterraneandiet

Your brain quietly produces waste all day, every single day. But it only gets properly flushed out while you are asleep, through a system called the glymphatic system, discovered as recently as 2013. In this episode I explain how this drainage network works alongside your wider lymphatic system, the secondary circulatory network that has no central pump and instead relies on movement, breathing and the pulse of nearby arteries to keep fluid flowing. I talk through why a sedentary lifestyle slows this system down, what that means for inflammation and immune function as you age, and why even one night of poor sleep has been shown to increase the build up of proteins linked to Alzheimer's disease. I also cover the growing research connecting lymphatic function to heart health, the five things that genuinely support this system including movement, deep breathing, sleep, cutting back on alcohol and maintaining good metabolic health, and why things like dry brushing and detox supplements are not backed by solid evidence. The full list of research references is in the description of the YouTube version of this episode. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #longevity #sleephealth

These weight loss injections like Ozempic, Wegovy and Mounjaro genuinely work. In the big trials, people lost around 15 to 20 percent of their body weight, and a separate trial of 17,000 people with heart disease and excess weight showed around 20 percent fewer heart attacks, strokes and cardiac deaths. That part is not really in question. What worries me is how these drugs arrived in public life, through red carpets and before and after photos with nobody admitting what they were taking. That shifted what people believe a normal body looks like, caused shortages for people with type two diabetes who actually needed these medications, and pushed some people towards unlicensed products bought online with no doctor involved at all. Being overweight is not the disease itself. It is often the visible end of things like insulin resistance and low grade inflammation that never switches off. These medications reduce how much you eat, but they do not change what you eat and they do not address why you were eating that way in the first place. For a great many people taking these drugs, I think they are best understood as a window rather than a destination. Using that window to build better habits, get more protein in, build up your fibre, get walking and do some proper resistance training twice a week gives you a real chance of keeping the benefit for good. The data on stopping is clear too, people regained around two thirds of the weight within a year of coming off treatment. Some people will need to stay on these medications for a long time, and that is a legitimate medical decision made with your own doctor. This conversation is about using the time you have on these drugs well, whatever you and your doctor decide about the long run. The full list of research references for this episode is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #weightloss #glp1

Bowel cancer in people under 50 is rising, and the numbers are genuinely striking. Someone born around 1990 has roughly double the risk of bowel cancer compared with someone born around 1950 at the same age, and the risk of rectal cancer specifically is even higher. At the same time, rates in older people are actually falling, which tells us something in the way we live has changed. In this episode I go through what the research currently points to. That includes how inactivity affects insulin levels in a way that may encourage damaged cells to grow, how ultra processed food has pushed fibre out of our diets, and what that does to the good bacteria living in your gut. I also talk about a toxin called colibactin, made by certain strains of E. coli, which a 2025 study found far more often in bowel cancers diagnosed in people under 40 than in those diagnosed over 70. I also cover alcohol, why the old idea that a glass of red wine is good for your heart doesn't hold up once you look closely at the research, and why regular drinking carries more risk than people often assume. Most importantly, I talk through the warning signs you should never ignore, things like bleeding from your back passage, an unexplained change in bowel habit, weight loss you can't explain, or tummy pain that keeps coming back. If any of these apply to you, please get seen by a doctor. The full list of research references for this episode is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #boweldcancer #guthealth

There is a process ticking away in your body right now that sits behind pretty much every condition Dr Alex has treated in A&E, from heart attacks and strokes to type 2 diabetes, dementia, arthritis, kidney disease and several cancers. That process is low grade inflammation, and what you eat has a real influence on whether it stays switched off or keeps simmering away for years. In this episode Dr Alex explains what inflammation actually is, why it sometimes fails to switch off, and the nine foods that help bring it back under control. These include tinned oily fish for the omega 3 fats that help end an inflammatory response, blackberries for their pigments called anthocyanins, broccoli for a compound called sulforaphane that switches on your own cell defences, and extra virgin olive oil, which contains a polyphenol that works a bit like a mild natural ibuprofen. He also covers hemp seeds, mushrooms and their compound ergothioneine, turmeric and why cooking it with black pepper and oil matters more than taking a supplement, fermented foods like yoghurt, kefir, sauerkraut and kimchi for gut bacteria diversity, and dark chocolate at 80 percent cocoa or above for its flavanols. Finally, Dr Alex talks through the three everyday habits that push inflammation back up: ultra processed food, not eating enough fibre, and alcohol, including why the old idea that a glass of red wine protects your heart does not hold up once you look at the research properly. The full list of research references is in the description of the YouTube version of this episode. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #inflammation #guthealth

Big update today. I have been building something behind the scenes for months and I finally want to share where things are up to. It is called The Long Game Kitchen, a recipe platform I have been working on with Steph. The idea came from so many of you after I first mentioned wanting to film cooking content. Rather than just show what we eat, we decided to build something bigger, a full database of the recipes we actually cook at home, alongside the reasoning behind why certain foods and combinations are good for you. We are aiming for around 150 recipes at launch, a genuine mix of breakfasts, lunches, dinners and snacks. Nothing dogmatic, nothing restrictive. There is meat, there is chocolate, there are veggie and vegan options too. It is all whole food, cooked from scratch, with plenty of inspiration from the Mediterranean. This has honestly been the hardest I have ever worked on anything, including medical school and ten years as a doctor. Early mornings, endless recipe testing, writing and photography, all in the hope of building something that genuinely helps people cook better and live longer. We are planning to launch in the second half of November, with a discount for founding members and an extra discount for anyone who joins in the first week. If you want to be the first to hear when it goes live, the newsletter is the best place to find out, link in the description. The full list of research references for my videos is always in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #thelonggame #longevity

Cardiovascular disease kills around 20 million people a year worldwide, about a third of all deaths on the planet. In the UK it accounts for more than a quarter of deaths, roughly 170,000 people a year, which works out to one person every three minutes. Someone is admitted to hospital with a heart attack roughly every five minutes. Up to 80 percent of heart attacks and strokes that happen before old age could be prevented. In this episode I go through what heart disease actually is, how it starts in the lining of your arteries decades before any symptoms appear, and what the warning signs look like in A&E, including the ones that often get missed in women, older people and people with diabetes. I also share my own dad's story. He had a heart attack at around 40, and it changed how my whole family thinks about prevention. Heart muscle that dies during a heart attack does not grow back, which is why the best treatment for a heart attack is never having one at all. We also cover the habits that actually make a difference, eating mostly whole foods grown in the ground, cooking from scratch, walking more and checking your blood pressure, cholesterol and blood sugar regularly, since all three can quietly rise for years without causing any symptoms. The full list of research references is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #heartdisease #preventativehealth

Visceral fat is the fat packed around your liver, gut and pancreas, and it behaves like a gland, pumping out inflammatory chemicals around the clock. The good news is it is often one of the first types of fat to shift when you change two specific habits, sometimes within weeks. The first is eating plenty of colourful, polyphenol rich plants such as blueberries, red cabbage, tomatoes, leafy greens, extra virgin olive oil and dark chocolate above 80%. In trials using MRI scans, people on a Mediterranean style diet with extra polyphenols lost roughly twice as much visceral fat as those on a standard Mediterranean diet, even though overall weight barely changed. The colour on your plate tends to come with more fibre, more antioxidants and more home cooked meals, and that whole pattern seems to be what does the work. The second habit is interval training, short bursts of hard effort followed by easier recovery. It is one of the quickest ways to improve your fitness, helps your body handle sugar better, and builds muscle in your legs and core, often in far less time than a steady cardio session. It will not suit everyone, so if you have heart disease, chest pain, high blood pressure or any other significant medical condition, speak to your doctor before trying it. The full list of research references is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #visceralfat #inflammation

Four everyday foods sit in most weekly shops without a second thought, yet they are tied to some of the strongest links to cancer risk we have. In this episode Dr Alex breaks down processed meat, sugary drinks, ultra processed snacks and alcohol, explaining why each one is so easy to overeat and what the research actually shows about the risk involved. He also shares a simpler way to think about your plate, built around a rotation of meals you enjoy rather than restrictive dieting, and why the parts of the world with lower cancer rates tend to eat very differently. The full list of research references is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #preventativehealth #nhsdoctor

A supplement claim going around says taking bergamot extract can lower LDL cholesterol by 41% and put it on a level with a prescription statin. I wanted to look at the study behind that number properly. The research came from 2011, ran for about 30 days, and included a couple of hundred people in southern Italy, where nearly all commercial bergamot is grown. The participants weren't average healthy adults. They were recruited because their cholesterol was already high, and some also had type 2 diabetes. The reductions reported ranged from the low twenties up to the high thirties as a percentage, and the very biggest figures, the ones close to that 40% mark, came from people who were taking a statin at the same time. A percentage on its own doesn't tell you much without the starting number attached. If your LDL starts at 4.2, a 41% drop takes you to around 2.5. If it starts at 3, that same percentage only brings you to around 1.8. The higher your starting point, the easier it is to produce an impressive looking percentage. There is some genuine chemistry behind bergamot. It contains flavonoids that can block the same enzyme in the liver that statins target, and that effect has been shown in lab and computer modelling. What hasn't been settled is how much of that actually reaches the liver once it's been through your gut and broken down by your gut bacteria. We also know from a huge amount of research, across statins, other cholesterol lowering medications and people with genetically lower cholesterol, that bringing LDL down over years tends to protect the arteries. But that evidence is built on long term outcome data, not on a single 30 day blood test. Nobody has followed people taking bergamot for years and counted how many went on to have a heart attack. Even if it does nudge your cholesterol down a little, I wouldn't take it instead of or alongside a statin without speaking to your doctor first. Bergamot is a citrus fruit, and citrus fruits can interfere with how your body processes certain medications, including some statins. Supplements like this also aren't standardised, so what's in the bottle can vary a lot between brands and batches. If you're on a statin, please don't stop it or swap it for a supplement without talking to your doctor, who knows your history and your actual risk. The full list of research references for this episode is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #cholesterol #supplements

Can you bring your blood sugar down without cutting out carbs altogether? Yes, and the answer comes down to which carbs you are actually eating. Broccoli, lentils, oats and berries are all carbohydrates too, so when someone says they are cutting carbs, the real question is which ones. That answer decides whether the whole approach works long term or quietly falls apart within a fortnight. In this episode I go through what actually decides how much your blood sugar rises after a meal, why milling and juicing change things so much, and why your muscles play a bigger role in all of this than most of the advice out there gives credit for. I also talk through insulin, where fat sitting in your liver and pancreas fits into type 2 diabetes, and why a diet built around beans, whole grains, fruit and vegetables can lower HbA1c even while increasing total carbohydrate intake. Towards the end I share a few simple habits that have genuinely helped me and Steph, like giving your body a longer overnight break between dinner and breakfast, not snacking constantly between meals, and moving after you eat. The full list of research references is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #bloodsugar #guthealth

If you lined up two 60 year olds, one could have the heart, blood sugar and muscle of someone in their late 40s while the other is already heading towards the problems we see constantly in A&E. The difference usually shows up years before anything actually goes wrong. In this episode I talk through seven signs that tend to separate the two, starting with a couple of simple blood tests, then a scan of the heart, then how much you move and how fit you are, then your memory, and finally what actually happens in your kitchen. A normal albumin level on a blood test is often one of the first things that tells you a lot about someone's overall health, reflecting muscle, nutrition and inflammation. Staying physically active throughout most of the day, not just during one workout, matters because long unbroken stretches of sitting are linked with worse blood sugar and heart health even in people who exercise. A normal echocardiogram in your sixties is a genuinely reassuring sign about how your heart muscle and valves have held up over the decades. A healthy HbA1c shows how your blood sugar has behaved over the last few months and responds really well to lifestyle changes. Good cardiovascular fitness for your age, something you can track with a simple watch or just by checking whether you can hold a conversation after climbing a couple of flights of stairs, is one of the strongest predictors we have of how long and how well someone lives. Sharp conversational memory and the ability to multitask without slowing down a lot says a great deal about brain health as you get older. And cooking most of your meals from scratch with plenty of colourful plants ties everything else together, supporting your blood sugar, your heart, your brain and your muscle all at once. If you can say yes to all seven, you should feel genuinely proud. If you can't yet, remember these are patterns you can work on, not a verdict on your life. The full list of research references is in the description of the YouTube version of this episode. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #healthyageing #preventativehealth

Every heartbeat needs your arteries to widen slightly, and the molecule that lets that happen is nitric oxide. When your body makes less of it, your arteries gradually stiffen and blood pressure can creep up, often without you noticing for years. In this episode I go through seven everyday things that quietly lower your nitric oxide, including one habit plenty of people do every morning thinking it helps them. We cover sitting still for long stretches, poor sleep, antiseptic mouthwash, smoking and vaping, low oxygen levels during sleep, low fitness, and ultra processed food. I also answer questions from the last nitric oxide video, including beetroot, arginine and citrulline supplements, and whether people with naturally low blood pressure need to worry. The full list of research references is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #nitricoxide #preventativehealth

Once you pass 50, five everyday movements can tell a doctor a surprising amount about how your body is ageing and how long you are likely to stay independent. No equipment needed, you can try each one at home today. The first is climbing two flights of stairs without stopping. It asks your heart, lungs and leg muscles to work together, and some doctors even use it as a rough guide before big operations like lung surgery. The second is putting your shoes and socks on without sitting down or leaning on anything. This one is all about balance, standing on one leg while your ankles, core and brain coordinate to keep you upright. The third is carrying heavy shopping from the car to the kitchen without putting the bags down. This is really testing your grip strength, which reflects how your muscles are functioning right across your whole body. The fourth, and the one that catches people out the most, is getting down to the floor and standing back up again without using your hands or knees. It needs leg strength, hip flexibility and balance all at once, which is exactly why it is so hard. The fifth is managing 10 press ups, testing the strength and stamina in your chest, shoulders, arms and core. None of these are formal medical tests you would find in a hospital or a textbook, but they lean on the same things doctors do measure, strength, balance and coordination. If something specific like arthritis or a joint replacement stops you doing one of them, that is a completely different situation to simply being out of practice. If you struggled with any of these, you are in very good company and it says far more about how modern life is set up than about you as a person. The encouraging part is that every one of these can be improved at any age, even starting later in life makes a real difference. The full list of research references for this episode is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #longevity #healthyageing

Two 70 year olds, same town, same height, same starting point. One has trained for most of their adult life. One hasn't. Look inside their muscle cells and the difference is not small. In this video I take you inside a muscle to show what actually happens as we age, why your energy producing machinery slows down, how fat sitting inside muscle messes with your blood sugar, and why your nerves start dropping fast muscle fibres from your 50s onwards. I also look at what the research says about NAD boosting supplements, and whether it is ever too late to start training. Spoiler, it isn't. There is a study in this video involving people in their late 80s and even their 90s who improved their strength and walking speed with regular training. The full list of research references for this video is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #muscleaging #strengthtraining

I eat somewhere around 60 grams of fibre on a normal day. I never planned that number and I never tracked it, Steph and I just sat down one day and worked out what a typical day actually contained. For context, the average person in Britain eats around 18 to 20 grams a day, and in the US it is closer to 15 or 16. The official guidance sits at 30 grams in the UK and between 25 and 38 grams in the US depending on sex. A lot of doctors working in this space, myself included, think those targets are set low on purpose, as a realistic starting point for a population eating far less, rather than as an actual goal for health. In this video I go through why those numbers look the way they do, what a large review in the Lancet found when looking at fibre intake well above the official guidelines, and what groups like the Hadza in Tanzania and communities in the Bolivian Amazon eat on a daily basis without a second thought. Then I walk through an entire ordinary day of eating in our house, meal by meal, showing exactly where that fibre comes from. Spoiler, tinned beans do a huge amount of the work. The full list of research references for this episode is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #fibre #guthealth

Most health advice I give is about small, slow changes. But some of you have told me you prefer to go all in, so here is a full day built entirely around your health, from the moment you wake up to the moment you fall asleep. It starts with getting outside into natural daylight as soon as you can after waking, which helps set your body clock for the whole day. Then comes a breakfast with proper protein and some colour on the plate, which keeps your blood sugar steady and your energy levels up for hours. After that, a short walk, even just a few minutes, helps your muscles pull sugar out of your bloodstream before it causes any damage. Somewhere in the day you want to lift something properly heavy, because muscle is one of the biggest places your body stores sugar safely and it protects your bones as you age. Add something fermented, aim for a wide variety of plants across the week, get outside again for a proper laugh with someone you care about, and protect the final hour before bed by dimming the lights and keeping your bedroom cool and dark. You do not need to keep all of it going forever. Try the whole day once, then keep the two or three parts that felt easiest and build from there. The full list of research references for this episode is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #preventativehealth #healthyhabits

What actually happens to your blood sugar if you did 30 squats every day for 30 days? In this episode I go through exactly that, from the first afternoon all the way through to a full year of doing this. The short version is that using your muscles after a meal gives your blood sugar somewhere to go instead of sitting around in your bloodstream causing damage. Your muscles are the biggest user of the glucose you eat, and squeezing them opens up a way for sugar to get in that does not rely on insulin working properly, which matters a lot if your insulin signalling has already started to struggle. Research looking at short bouts of movement every twenty minutes or so found noticeably less sugar in the blood afterwards and a real drop in the amount of insulin the body needed to deal with it. More recent work using small sets of squats scattered through the day found similar benefits, sometimes doing better than one longer walk. I take you through what to expect at each stage. The effect on a single meal is immediate. Thirty days builds the habit and starts shifting insulin sensitivity under the surface, even if your bloods do not show much yet. Three months is where a blood test can actually reflect the change. A year of this puts you on a genuinely different trajectory for your long term health. I also cover how to actually fit this into a normal busy day, how to do a squat safely, and why this only works as part of a wider picture that includes what you are eating, not as a replacement for it. The full list of research references is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #bloodsugar #insulinresistance

Cooling your rice, pasta or potatoes after cooking turns some of that starch into something your body treats more like fibre than carbohydrate. The surprising part is that reheating it properly the next day does not undo that benefit. The type of starch responsible for most of the effect is incredibly heat stable, so warming your food back up barely touches it. The food poisoning worry that comes up every time this topic is discussed is really about how quickly food is cooled, not about reheating it. Bacteria like Bacillus cereus can survive cooking by forming spores, and those spores wake up if food sits too long at room temperature. Getting food into the fridge promptly, rather than leaving it out for hours, is the part that actually matters for safety. Freezing bread works on the same principle. A fresh slice gives the biggest blood sugar spike, but freezing and then toasting it brings that spike down noticeably, roughly half as much in the small study mentioned in the video. It also stops good quality loaves going to waste, which makes it one of those habits with no real downside. None of this replaces eating more fibre in the first place or cutting back on refined carbohydrates generally. The numbers involved are fairly small on their own, an extra gram or two of resistant starch per portion, but repeated several times a week over many years, small shifts like this genuinely add up. The full list of research references for this video is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #guthealth #healthyeating

Five diet mistakes that are quietly undoing your health, and none of them require buying anything new or giving up the food you love. The first is not getting enough antioxidants. These come from colourful plants and they protect the lining of your arteries from everyday wear and tear. Supplements will not do the job here, the food itself is what matters. The second is eating the same few plants over and over. Variety matters just as much as quantity, since different coloured plants feed different parts of your body. Aiming for around 30 different plants a week is a good target, and herbs, spices, nuts and beans all count towards that. The third is simply not eating enough fibre. The UK recommendation is 30 grams a day and the average person falls well short of that. Fibre lowers cholesterol, flattens blood sugar spikes and calms inflammation, all from one thing on your plate. The fourth is reaching for sugar and refined carbs first thing in the morning. Many breakfast foods are dressed up desserts, and they send your blood sugar up and then crashing down, leaving you foggy and hungry again within hours. The fifth is fearing fat itself rather than choosing the right type. Good fats from oily fish, nuts, seeds and olive oil actually help your liver clear cholesterol, while the low fat trend of past decades often just replaced fat with sugar and starch. The full list of research references is in the description of the YouTube version of this video. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #nutrition #healthyeating

Aspirin sits in millions of kitchen cupboards, but whether it helps or harms you comes down to one question most people have never been asked properly. In this episode I explain what aspirin is actually doing inside your body once you swallow it, why the dose matters so much, and why a tablet that works brilliantly for some people can quietly cause harm in others. I walk through the difference between secondary prevention, for people who have already had a heart attack or stroke, and primary prevention, for people trying to stop a first event ever happening. These are two very different situations with very different evidence behind them. I also cover the big studies that changed official guidance in the UK, the US, Canada and Australia, and why the advice for older adults without existing heart or artery disease has shifted so clearly away from routine daily aspirin. Finally, I compare aspirin against simple lifestyle changes such as diet, walking and blood pressure control, and what the evidence actually shows when you put them side by side. The full list of research references is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #aspirin #heartdisease

Your eyes can lose around a third of their function before you ever notice anything is wrong, because your brain quietly fills in the gaps and hides the problem from you. In this episode I go through exactly how your eye works, why presbyopia from your mid forties onwards is normal ageing rather than a disease, and the difference between your eyes ageing at the pace they should and ageing faster than they should because of years of accumulated damage. I also cover a simple fifteen second test you can do at home to pick up on early changes in your vision, the symptoms that mean you need to be seen the same day rather than waiting for a routine appointment, floaters and when they actually matter, glaucoma, cataracts, sunglasses and the best time of day to wear them, and why your yearly eye test checks for far more than just whether you need new glasses. The full list of research references for this episode is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #eyehealth #preventativehealth

You can throw out your salt shaker completely and your blood pressure can still barely move three months later. That is not you doing something wrong. It usually means something underneath your diet has been pushing that number up for years. In this episode I go through five things that keep blood pressure high even when someone's diet already looks fairly sensible: where most of your salt actually comes from and the mineral that is missing alongside it, the hormone problem that runs quietly for years before anyone mentions diabetes, what ultraprocessed food does to your vessels beyond the salt it contains, the type of exercise that moves the number more than people expect, and the stress and sleep side of things, which I personally find hardest. The full list of research references for this episode is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #bloodpressure #preventativehealth

After my last video on B12 deficiency, thousands of you said you recognised the symptoms, and hundreds told me your test came back normal while you still felt unwell. So this video is a proper follow up. I go through five things you can actually do if you think you might be deficient, starting with whether you have a genuine risk factor in the first place, such as age over 50, acid suppressing medication, metformin, nitrous oxide use, gut conditions like coeliac or Crohn's, or a diet with little or no animal products. Then I walk through the handful of symptoms that matter most and explain what is actually happening in your body for each one, from fatigue and breathlessness to tingling in your hands and feet, balance problems, and changes to thinking or mood. I also explain the testing pathway as it works in the UK and the US, why the standard blood test can miss a real deficiency, what the indeterminate zone means, and when tests like MMA or active B12 come into play. Finally I cover tablets versus injections, what the evidence actually says about each, and what I would honestly do if I were in your position trying to get this taken seriously by a doctor on a busy Tuesday morning. The full list of research references is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #B12deficiency #preventativehealth

Your gut lining is rebuilt from scratch every few days, which means the food in your basket this week genuinely becomes the material your gut is made from next week. In this episode I go through the 12 foods that make it into our shopping basket every single week, from tinned sardines and extra virgin olive oil to kefir, sauerkraut, oats, tinned pulses, frozen berries, leafy greens, broccoli, walnuts, garlic and onions, and ground flax seed. I talk through what each one is actually doing once it reaches your gut, how that connects back to inflammation elsewhere in your body, and how we actually use these foods at home day to day. The full list of research references is in the description of the YouTube version if you want to look into any of it further. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #guthealth #antiinflammatory

High cholesterol on a blood test and told to just cut back on fat and come back in six months? That advice misses almost everything that actually matters. In this episode I walk through the one number on your blood test that really counts, LDL cholesterol, and why a high HDL does not cancel it out. I also cover the portfolio diet, the combination of plant sterols, soluble fibre, plant protein and nuts that has been shown to bring LDL down by around 30 percent in research trials, plus the one simpler swap that does most of the work if that feels like too much all at once. We get into the egg question properly, why your liver makes far more cholesterol than you could ever eat, and what is really happening inside your liver when you swap saturated fat for polyunsaturated fat. I explain why going low fat often backfires when the fat gets replaced with refined carbs instead, and what a realistic two week plan looks like before you get retested. The full list of research references is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #cholesterol #nhs

A lot of you sent me the same podcast clip recently, where a well known nutrition professor says the protein guideline is plenty and the whole obsession with eating more is overblown. He is right about quite a bit of it. Protein deficiency barely exists in Britain or America. Protein shakes and bars are mostly just marketing. You can get everything you need from whole food, plants included. Here is where I still disagree. The official number was built to stop an average, largely sedentary population from becoming deficient. It was never designed to be the amount you aim for if you actually want to stay strong as you get older. Your body has nowhere to store spare protein. Eat more than you use and your liver just strips it down and either burns it or turns it into fat. So protein only does its job when there is somewhere for it to go, and that somewhere is exercise. Strength work at least twice a week, carrying your own shopping, getting off the floor without help well into your eighties. That is the target worth building towards. If you are training regularly, somewhere around 1.2 to 1.6 grams per kilo of body weight, coming from eggs, beans, fish, nuts and a sensible amount of meat, is a reasonable thing to aim for. If you are not moving much at all, sort that out first before worrying about the number. One caveat worth repeating here. If you have any degree of reduced kidney function, this is a conversation to have with your own doctor before changing anything, not something to do off the back of a podcast. The full list of research references for this episode is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #protein #health

Three minutes a day, split into three short bursts, is all it takes to work the muscles that quietly hold you upright every time you stand up, carry the shopping or reach into a cupboard. A plank trains the deep muscles wrapping around your middle rather than the ones you see in the mirror, and that is exactly why it matters so much as you get older. In this video I go through what a plank actually does to your blood pressure, your balance and your chances of a fall, what it does for a lower back that keeps aching, and how to build up to it if you cannot hold one for more than a few seconds right now. I also show a simple variation at the end that turns this from a basic core hold into something much closer to a proper workout. The full list of research references for this video is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #planking #corestrength

Eight hours is probably the most repeated number in sleep health, yet so many people hit it every night and still wake up exhausted. That number was never a personal target. It is simply the middle of a range, and it only ever measures how long you lie in bed, not how much actual sleep your brain gets. In this episode I break down what really determines sleep quality. Deep sleep is loaded into the first half of the night and handles physical repair, while REM sleep builds through the second half and processes emotion and memory. Losing time from either end costs you very different things, even if the hours lost look the same on paper. I also talk through sleep efficiency, why sleep apnoea so often goes unnoticed, why alcohol wrecks the second half of your night, and why a large UK Biobank study found that sleep regularity predicted risk of death more strongly than sleep duration did. I cover caffeine timing, morning light, restless legs, and why cognitive behavioural therapy for insomnia is recommended ahead of sleeping tablets. This episode is sponsored by Somnipods, the earbuds I have been using myself to deal with noise disruption overnight. The full list of research references is in the description of the YouTube version of this video. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #sleephealth #nhsdoctor

Your leg muscles are often the first to weaken as you get older, usually because of years of sitting more and moving less. What you eat plays a direct role in how much of that muscle you keep. In this episode I go through seven foods that help protect your leg muscles as you age, including eggs, oily fish, dairy, lean red meat, beetroot and leafy greens, pulses, and extra virgin olive oil, and why the timing and quality of your protein matters just as much as the amount. The full list of research references for this episode is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #muscle #nutrition

Here are seven foods I try to avoid as a doctor, and what I eat instead. Processed meat, sugary drinks, sweetened breakfast cereal, anything deep fried, alcohol, protein bars and sliced white bread all come up often in conversations with patients, so I wanted to explain what is actually happening in the body with each one and the swaps I make in my own kitchen. This is not about judging the odd treat here and there. It is the pattern of the same choice repeated thousands of times over years that raises the risk of disease. Small daily swaps add up in the same way. The full list of research references is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #preventativehealth #nhsdoctor

Your thyroid gets blamed for a lot of stubborn weight gain, and sometimes that blame is fair. But very often someone is sent away with a normal blood test and told their thyroid is fine, with no explanation for how they actually feel. In this episode I go through what your thyroid actually does, what changes when it runs slow or fast, what a normal result on your test really means, and what tends to be going on when your results are fine but the weight still will not shift. A normal thyroid test is good news on its own, but it is only one piece of the picture. When it comes back clear, that should be the start of a proper conversation about what else might explain your symptoms, not the end of one. I also talk through why a properly underactive thyroid usually explains a few kilos rather than several stone, and why so much of what people assume is fat is actually fluid building up under the skin. For a lot of people, the bigger drivers sit elsewhere, in food quality, movement, sleep and stress, and none of that is said to make anyone feel guilty. The full list of research references for this episode is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #thyroidhealth #weightloss

You can be a completely normal weight and still be carrying the type of fat that does the most damage over time. Visceral fat sits deep around your liver and intestines rather than just under your skin, and it behaves very differently because of where it drains in your body. In this episode I go through five things with proper evidence behind them for shifting visceral fat. Losing body fat overall, aerobic exercise that gets you out of breath, the quality of the food you eat, getting enough regular sleep, and cutting back on alcohol and chronic stress. I also cover three things that get sold constantly but do very little. Ab exercises like crunches, fat burning supplements, and anything that makes you sweat around your middle like waist trainers or sauna belts. A simple way to check where you stand is a tape measure. Measure around the widest point of your waist and aim for a number that is under half your height. The full list of research references for this episode is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #visceralfat #preventativehealth

Your body makes a gas called nitric oxide inside the lining of your blood vessels every single day, and it only survives for about a second before it disappears. It is so powerful that a synthetic version of it is used in emergency medicine during a heart attack. Nitric oxide tells the muscle in your artery walls to relax, which drops your blood pressure. But it also keeps the inner surface of your arteries smooth, so cholesterol and immune cells cannot stick and start building the plaques that lead to heart attacks and strokes. In this episode I go through six ways to raise your nitric oxide, including what you eat, a habit that might be sitting in your bathroom cabinet right now, how movement changes things even when you are not exercising, what your nose and sunlight have to do with it, and the one factor that matters more than any of the others, which is not making more nitric oxide but destroying less of it. The full list of research references is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #nitricoxide #heartheath

Bowel cancer usually gives warning signs long before it becomes serious, but those signs are easy to explain away as something you ate, stress, or just getting older. In this video I go through six warning signs of bowel cancer in order, from the easiest to miss through to the most serious one of all, which needs an ambulance. For each one I explain what it actually means in your body and what you should do about it, whether that is a routine GP appointment, a same day appointment, or a trip to A&E. The six signs covered are bloating that lasts three weeks or more, tiredness and breathlessness caused by hidden blood loss, a change in bowel habit that sticks around, losing weight without trying, bleeding from the back passage, and a blocked bowel. If you are in the UK and aged between 50 and 74, the NHS will post you a screening kit every two years. Screening does not cover you for new symptoms though, so please do not wait for a kit to arrive if something feels off. The full list of research references for this video is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #boweldisease #preventativehealth

A study following more than 90,000 people for around 20 years found that those eating a small handful of walnuts five or more times a week were about 14% less likely to have died by the end of the study than those who ate none at all. What makes walnuts stand out is that this isn't just one observation. A proper randomised trial handed people the nuts directly and then tracked heart attacks and strokes, and found a lower rate of those events in the group eating nuts regularly. In this episode I go through that large study, the trial behind it, what walnuts appear to be doing inside your blood vessels once eaten, and what this looks like in a normal week, including how much to eat and how to store them so they don't go off. The full list of research references for this episode is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #walnuts #preventativehealth

Cortisol gets a bad reputation, but without it you would not survive the day. The real issue is that your stress system was built to handle a threat lasting a few minutes, while many of us are carrying pressure that lasts years. In this episode I walk through what cortisol does when it is working properly, what changes when stress never switches off, the signs worth noticing, why sleep sits right at the centre of all this, how movement and food shape the picture, and the part that happens purely in your own head through rumination. I also cover why adrenal fatigue is not a recognised diagnosis, what the evidence actually shows for supplements like ashwagandha, and why saliva cortisol tests are so hard to interpret. The full list of research references for this episode is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #cortisol #stressmanagement

The PSA test that most men get offered is right about as often as a coin flip, and a newer blood test claims 94 percent accuracy. Both numbers need context before they mean anything. In this episode I go through what PSA actually measures, why catching a prostate cancer early does not always help the man it is found in, how the biopsy pathway has quietly changed for the better, and what this new 94 percent test can and cannot tell you. I also cover a second test from Sweden called Stockholm3 that I think deserves a lot more attention than it gets, and the screening decision the UK made this June that most people have misunderstood. The full list of research references is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #prostatecancer #psatest

Families often come into A&E convinced a parent is developing dementia, when forgetfulness, exhaustion and low mood can sometimes be traced back to something far simpler and far cheaper to check for. As we move past our 50s, the stomach lining naturally becomes thinner and produces less acid, which makes it harder to release vitamin B12 from food and harder for the body to absorb it. Two very common prescriptions, metformin for type 2 diabetes and PPIs for acid reflux, can also quietly reduce how much B12 the body takes in, especially the longer they are used. When B12 and other B vitamins like folate and B6 run low, a substance called homocysteine starts to build up, and higher levels have been linked to faster brain shrinkage and poorer memory. A small Oxford trial found that people with mild memory problems who took folic acid, B12 and B6 saw their brains shrink more slowly than those given a placebo over two years, particularly those who started with the highest homocysteine levels. It is an interesting result, though the study was small and larger trials have not shown the same clear benefit across the wider population. The most reliable way to protect these levels is through whole foods rather than supplements. Fish, shellfish, eggs and dairy provide B12, leafy greens, beans and lentils provide folate, and fish, poultry, potatoes and bananas provide B6. Supplements have their place for people on a vegan or vegetarian diet, those on medication that affects absorption, or anyone with a confirmed deficiency, but they are not a substitute for eating well. If you think this might apply to you or a relative, it is worth asking your doctor for a full blood count along with B12, folate, ferritin, thyroid function and HbA1c, since an underactive thyroid or rising blood sugar can cause very similar symptoms. Please do not stop any prescribed medication, including antidepressants, based on this video. Speak to your doctor first. The full list of research references is in the description of the YouTube version of this video. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #B12deficiency #BrainHealth

Your kidneys can lose a huge amount of their working capacity before you ever feel anything wrong, which is exactly why kidney problems tend to get missed until they are much further along. In this episode I go through the early signs that are genuinely worth paying attention to, including frothy urine that does not clear after a minute, puffiness around your eyes in the morning, swelling in your ankles or lower legs, and needing to get up at night to pee more than you used to. I also cover the later signs that only appear once things are more advanced, the two tests that catch kidney problems long before any symptom does, and what actually protects your kidneys over the long run, including the role of blood sugar, blood pressure, certain painkillers, and diet. The full list of research references is in the description of the YouTube version of this video. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #kidneyhealth #preventativehealth

One in four scans I used to see in A&E had the same quiet little note at the bottom: fatty infiltration of the liver, incidental finding. No pain, no symptoms, just sat there until we went looking for something else entirely. The good news is that this is one of the most reversible things we talk about in lifestyle medicine. Studies show that meaningful weight loss and cutting back on added sugar can genuinely shrink liver fat, sometimes within weeks. Even swapping in resistant starch, the kind your gut bacteria feed on, seems to make a real difference. In this video I share five meals we actually cook at home, from overnight oats to a cold potato and mackerel salad, that lean on fibre, olive oil, oily fish, beans and resistant starch rather than the fast sugar hit that so much processed food gives your liver. The full list of research references for this video is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #liverhealth #guthealth

You cannot dissolve plaque like pouring a drain cleaner down a pipe. Plaque forms inside the wall of your artery, not on the surface, so there is nothing to simply rinse away. But the research does show three real things we can aim for. You can stop plaque getting worse. You can stabilise it so the cap toughens and becomes far less likely to burst. And in some trials, plaque has genuinely gone backwards. Two studies make this clear. The Ornish trial put patients with existing heart disease onto an intensive lifestyle programme and found most of that group showed some regression, while the group on standard care kept getting worse and had far more cardiac events over time. The ASTEROID trial took the opposite route, using a high dose statin, and used ultrasound scans to watch plaque actually shrink. Diet and medication are not competing with each other. They work on the same root causes, mainly cholesterol and inflammation, just by different routes. In this episode I walk through six practical steps that the evidence actually supports, covering your cholesterol numbers, the way you eat, how movement helps clean your arteries, calming chronic inflammation, managing stress properly, and which supplements are simply not worth your money. The full list of research references is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #hearthealth #preventativemedicine

Your grandmother's kitchen in 1955 had a loaf of bread that took most of a day to make and cabbage sitting in a jar of brine. Your kitchen this morning probably has sliced white bread with a list of emulsifiers and preservatives longer than your hand. In this episode I go through six things that have changed in our food environment since around 1950 that help explain why IBS has become so common. These include how bread is made now compared to then, our disappearing fibre intake, the rise of emulsifiers in processed food, the loss of fermented foods from our diets, the impact of antibiotics on gut bacteria, and the way stress and rushed eating affect gut function. I also cover two common mistakes people make when trying to sort out their gut health themselves, including cutting out gluten before getting properly tested and misusing the low FODMAP diet. The full list of research references for this episode is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #guthealth #IBS

Imagine there were no doctors, no A&E, no statins, no insulin. Would you still make the same choices every single day? In this episode I talk about why the NHS was built to handle fast problems like infections, injuries and childbirth, and why it now spends most of its time trying to hold back slow problems like heart attacks, type 2 diabetes and fatty liver disease that take decades to build. I go through why ultra processed food is engineered to be hard to stop eating, what a tightly controlled feeding study found when people switched between processed and whole food diets, and why a diagnosis often comes with a tablet but very little education about what actually caused the problem in the first place. I also share what a real world weight management trial found when people diagnosed with type 2 diabetes were given structured support alongside their usual GP care, and why small daily choices matter so much more than they feel like they do in the moment. The full list of research references for this episode is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #preventativehealth #nhs

After a decade in emergency medicine, Dr Alex noticed something odd. The age on the computer screen and the age on the trolley are often two completely different things. Some patients in their 80s felt decades younger than their notes suggested, while others much younger had become frail before their time. So what are the people who age well actually doing differently? In this episode Dr Alex shares four habits he has noticed again and again over years of shift work, none of which involve a supplement or a special diet. He talks through staying curious, processing setbacks instead of ruminating on them, thinking critically about health claims, and having a reason to stay well, a sense of purpose that pulls you through the day. He is upfront that these are his own clinical observations rather than a formal study, but he backs each point up with research where he can, including work on neuroplasticity, cortisol and chronic stress, and large studies linking a sense of purpose to heart health and memory in later life. The full list of research references is in the description of the YouTube version of this video. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #preventativehealth #healthyaging

A flight of stairs tells you more about your heart than most tests done while you're sitting still. In this episode I lay out one heart focused job for each day of the week, from walking and strength work to checking your blood pressure and going through your supplement cupboard. None of these individual days will fix anything on their own. The point is repeating the whole week for years, not finding one magic habit. The full list of research references for this episode is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #hearthealth #preventativehealth

30 plants a week sounds impossible until you realise it is not 30 big portions of veg. Fruit, nuts, seeds, beans, lentils, whole grains, herbs and spices all count, and once you add those up the number becomes far more achievable than it first sounds. This target comes from one of the largest studies ever done on the human gut, which found that plant variety, not whether people ate meat, took probiotics or exercised, was the single strongest predictor of a healthy, diverse gut microbiome. Variety matters because different types of fibre feed different species of bacteria. Stick to the same few foods and only a narrow slice of your gut bacteria get fed. Widen your plants and you feed the whole system, which helps your gut produce compounds like butyrate that fuel your gut lining, support your appetite hormones and help keep that gut barrier tightly sealed. There is also a simple swap effect at play. Every plant you add tends to push something ultra processed out of your day, since a handful of nuts or a tabbouleh salad fills you up in a way a meal deal never will. In this video I explain where the number 30 actually comes from, what your gut bacteria do with all that variety, and simple low effort ways to build towards it without going vegan or overhauling your entire diet. The full list of research references for this episode is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #guthealth #preventativehealth

Try this. Stand up out of your chair without using your hands. That simple movement is one of the better predictors of how the next 20 years of your health will go, and the good news is that it can be trained. As an NHS emergency medicine doctor, I spent years treating falls and fractured hips that traced back to muscle that had been quietly disappearing for decades with nobody noticing. The trial I mention in this video followed frail nursing home residents in their late 80s, many using sticks or Zimmer frames. After just 10 weeks of proper resistance training, their strength more than doubled, their walking speed improved and their thigh muscle visibly grew on scans. A nutritional drink alone did almost nothing. In the full video I cover why so many people train for months and see no change, the small adjustment to how you move that matters more than raw strength, the mindset shift that decides whether you keep this up in 10 years, and the two quieter factors working underneath all of it. The full list of research references is in the description of the YouTube version of this video. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #muscleloss #healthyageing

Two people walk into clinic with the same painful knee and the same scan results. One is in pain most days. The other barely notices it. The difference very often has nothing to do with the joint itself and everything to do with what has been happening in their blood and on their plate for years. To be clear, you cannot eat your way out of arthritis and no single meal will regrow cartilage. But the pain you feel and the damage on a scan are two different things, and inflammation is a big part of the gap between them. In this episode I cover why acute and chronic joint pain need completely different approaches, what inflammation is actually doing inside a joint, why visceral fat behaves like an organ that signals straight to your knees, which foods turn that signalling up or down, and what the trial evidence actually shows. This is general education, not a replacement for being examined and diagnosed properly. If your pain is new, severe, in one hot swollen joint, or comes with fever or weight loss, that needs a same day assessment rather than a diet plan. The full list of research references for this episode is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #jointpain #inflammation

Diet or exercise, which one actually keeps you alive longer? I've spent years thinking about this question, and after a decade in emergency medicine I think I finally have an answer worth sharing. In this episode I walk through the strongest trial we have on diet alone (a Mediterranean pattern cut heart attacks, strokes and deaths by around 30 percent, with nothing else changed), then the strongest evidence on exercise alone (hitting 150 minutes a week was linked to a similar drop in risk of dying, and even half that amount still helped a lot). Both sides have genuinely solid evidence behind them. What tips it for me personally comes from the pattern I kept seeing on shift after shift, which points towards insulin resistance sitting underneath most of the chronic disease I treat. I explain why that pushes me towards food as the foundation and movement as something that builds on top of it rather than the two competing for a crown. The full list of research references is in the description of the YouTube version of this video. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #dietvsexercise #preventativehealth

Forget 10,000 steps. If you are currently doing next to nothing, the jump from where you are now up to around 5,000 steps a day will do more for your health than almost anything else I could ask of you. When researchers pooled together huge studies following tens of thousands of people for years, the curve was steepest right at the bottom. Going from around 2,000 steps up to 4,000 or 5,000 produced the single biggest drop in risk of dying from anything, across the whole range. After that the line keeps improving but it starts to flatten off, so every extra thousand steps buys you a little less than the one before. There is a study I think about often. Researchers took very active young people walking around 10,000 steps a day and asked them to drop down to just 1,500 steps for two weeks. In that short window their blood sugar control got measurably worse, their insulin stopped working as well, fat gathered around their middle and their fitness dropped off. When they started moving again, a lot of it reversed. That is because your muscles are the biggest sugar disposal system you own. Every contraction pulls sugar straight out of your bloodstream without needing to wait for insulin. A body that walks clears sugar out of the blood all day long, and persistently high blood sugar underpins so much of the chronic disease we see. Walking also helps lower blood pressure through something called shear stress, where faster blood flow against the lining of your arteries triggers the release of nitric oxide, your body's own blood pressure medication, which relaxes and widens the vessel walls. Then there is your brain. Moving your muscles releases chemical messengers that prompt your brain to produce more BDNF, a kind of fertiliser for brain cells that supports mood and memory. Some trials have even found that regular walking can work as well as medication for milder depression. A full list of the research references for this video is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #walking #preventativehealth

I just finished my final run of night shifts in the A&E and I cannot stop thinking about what I saw. Four nights in a row, roughly 120 patients in total. Two of those shifts were in resus, where the sickest people in the hospital end up. Heart attacks, cardiac arrests, sepsis, heart failure. For the first time ever I wrote down the reason every single patient was in front of me that night, leaving out anything identifiable. When I looked at the full list at the end of the week, one thing hit me hard. Out of around 120 people, every single one except one was there with something that could very likely have been prevented if something had changed years earlier. Heart attacks. Strokes. Falls linked to muscle that had wasted away over the years. Amputations from type two diabetes. Kidney failure. Heart failure. The same small group of conditions coming through the doors again and again, often in people younger than you would expect to be facing any of this. This is not a criticism of those patients. It is a reflection of a system built to patch people up once they break rather than help them avoid breaking in the first place, and of a modern life that quietly pushes all of us away from the basics that keep us well. I also tell the story of the one patient on that list who could not have been prevented by any lifestyle change at all. A four year old girl who had swallowed a button battery. It was the hardest shift of my career and I explain in the video why every parent needs to know how dangerous these batteries are. The full list of research references for this video is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #preventivehealth #nhs

Magnesium has become one of the most heavily marketed supplements out there, promising to fix your sleep overnight. So in this episode I went through what the research actually says. The honest answer is that the evidence is pretty thin. A lot of it comes from small studies, often funded by companies selling the product, and frequently without a proper placebo group. There is one small trial in elderly people with insomnia that gets quoted a lot, and it showed only modest improvement in a low quality study. When you pull together the better evidence, magnesium might nudge sleep very slightly in some people, but the effect is small and the certainty is low. A chunk of what people feel when they take it is likely the placebo effect, and I talk through why that matters so much with sleep specifically. There is one group it can genuinely help though, and that is people who are actually deficient. Certain people are more likely to run low, including those with poorly controlled diabetes, gut conditions that affect absorption, heavy drinkers, and people on certain long term medications. A standard blood test can be misleading here too, since less than one percent of your body's magnesium is in your blood. For someone eating a reasonably varied diet, true deficiency is not that common, since magnesium is already in foods like leafy greens, nuts, seeds, beans and whole grains. The bigger question I wanted to get into is why you are not sleeping properly in the first place, because a supplement can only ever paper over a cause. I cover the real drivers I see time and again, caffeine too late in the day, alcohol quietly wrecking your deep sleep, an inconsistent wake time, a bedroom that is too warm or bright, and a stressed mind that will not switch off. I also share a bit of my own experience with this during a rough patch with George's sleep, and what actually helped me get through it. Then I walk through the free changes that genuinely shift sleep long term, anchoring your wake time every day, getting outside in daylight soon after waking, cutting caffeine off by midday, keeping alcohol away from bedtime, keeping your room cool and dark, and getting your phone out of the bedroom. The full list of research references I mention is in the description of the YouTube version of this video. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #sleephealth #preventativemedicine

If you take a statin like atorvastatin, simvastatin or rosuvastatin, this episode is for you. I go through seven things that often get missed in a rushed appointment, including why so many of the aches people blame on statins may not actually be coming from the drug, why grapefruit can genuinely change how much of the tablet ends up in your blood, whether the time of day you take it actually matters, and the difference between relative risk and absolute risk, which is one of the most confusing parts of this whole conversation. I also talk through the small rise in type 2 diabetes risk linked to statins, why that risk is concentrated in people whose blood sugar was already creeping up, and the daily habits that work on your heart and blood vessels from angles a statin simply cannot reach. The full list of research references for this episode is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #statins #heartdisease

There is a sign your liver might be struggling that you would probably never connect to your liver at all. It does not hurt. It will not turn your eyes yellow. Most of the people who have it just put it down to being tired, stressed or getting older, and they carry on like that for years while their liver quietly clogs up with fat underneath. In this video I talk about that quiet sign, what is actually happening inside the liver to cause it, and how to reverse it, because the liver is one of the most forgiving organs we have. Fatty liver disease is now the most common chronic liver condition in the world, and research suggests it affects around a third of adults, so the chances are a good number of you watching this have it without knowing. I explain the flat, stubborn tiredness that doctors sometimes call TATT, the skin changes to look out for in places like the neck, armpits and groin, and why these signs often get missed because the liver is not even on the list of things being considered. I also break down what is happening inside the liver when it turns fatty, why liquid sugar and refined carbs play such a big role, and the order I would personally go in to start reversing it, from cutting sugary drinks to walking after meals and building a bit of muscle. None of this is about quick fixes or crash diets. It is about changes you can actually keep up for the next thirty years, because the same habits that protect your liver also protect your heart, your blood sugar and your brain. The full list of research references for this video is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #liverhealth #fattyliver

I came across a piece of research a couple of weeks ago that genuinely stopped me in my tracks. It points to a habit linked with living around 7 and a half years longer, and it costs nothing. No supplement, no fasting window, no cold plunge. Just what you believe about getting older. I know how that sounds, and I was sceptical too. But this comes from decades of work led by a Yale researcher called Becca Levy. In one long running study, people who held more positive beliefs about ageing went on to live around 7 and a half years longer than those with more negative beliefs, even after accounting for age, sex, wealth, loneliness and baseline health. A newer study from her team followed nearly 4,000 older adults for over a decade and found that close to half of adults over 65 actually improved their memory or walking speed at later checkups, and those improvements were more common in people who started out with more positive beliefs about ageing. Here is the catch though. The belief does not do anything on its own. What it seems to do is shape your behaviour. If you believe getting older means inevitable decline, you are less likely to bother with strength training, trying something new, or staying socially connected. If you believe later life can still be active and full, you keep doing the things that protect you. The belief drives the behaviour, and the behaviour drives the biology. This is largely observational research, so it shows a strong link rather than definite proof of cause and effect. But the mechanism makes sense, and it is the kind of thing worth building into how you think about the years ahead. The full list of research references for this episode is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #longevity #healthyaging

Memory loss isn't just genetics or bad luck. Research suggests a huge share of dementia cases could be prevented or delayed by things we actually have control over. In this episode I walk through three mistakes people commonly make in their 50s and 60s that quietly stack the odds against their brain, from ignoring a slowly rising blood sugar to letting life get too comfortable and understimulating. Then I share the one factor that surprises almost everyone I tell it to, and the one I would fix first in my own family. None of these habits work alone. It's the combination, kept up over years, that really shifts your long term brain health. The full list of research references is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #braintips #preventativehealth

You cannot unclog an artery the way you unblock a drain, but there is a lot you can do over years and decades to protect your heart and your blood vessels. In this episode I count down my top three vegetables for artery health, based on the physiology and on studies that actually measured hard outcomes like heart attacks and deaths rather than just a vibe. Cruciferous veg like broccoli, cauliflower, cabbage and kale are linked to less calcium building up and hardening inside artery walls, partly thanks to vitamin K and partly thanks to compounds that support the lining of your blood vessels. Beans and lentils are the surprise entry. In trials they lower LDL cholesterol by an amount that is genuinely meaningful, largely through their soluble fibre, and they barely move your blood sugar at all. Right at the top is the humble leafy green. Spinach, rocket, chard and kale are loaded with natural nitrates that your body converts into nitric oxide, the same molecule we use in hospital to widen blood vessels in people having a heart attack or severe heart failure. Through food you get a slow, steady version of that effect running quietly in the background all day. I also talk through two honest cautions, including a note for anyone on warfarin, and why these vegetables work alongside your medication rather than instead of it. The full list of research references for this episode is in the description of the YouTube version of this video. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #hearthealth #nutrition

Should you be taking omega 3 capsules? I get asked this constantly, and the honest answer might surprise you. For a healthy person, the big randomised trials (one following around 25,000 people, another around 15,000 people with diabetes) show that standard dose fish oil capsules do not meaningfully reduce heart attacks, strokes or deaths compared with a placebo. The label might say it supports heart health, but the best evidence we have does not back that up. There is one specific situation where a high dose prescription only form of omega 3 showed a reduction in major cardiac events in a trial called REDUCE IT, though the picture gets complicated once you look at the placebo used and other trials testing combined EPA and DHA that found no benefit at all. I go through all of this properly in the video, along with a consistent finding across these trials that omega 3 supplements raised the risk of a heart rhythm problem called atrial fibrillation, with higher doses carrying a bigger risk. None of this applies to eating oily fish itself. Mackerel, sardines, salmon and herring are linked with lower rates of heart disease in large population studies, and you get far more than omega 3 from the whole food. Vitamin D, protein, selenium, iodine, B12 and calcium from the bones all come along with it. A capsule isolates one ingredient and hopes it does the whole job alone. My honest view for most healthy people is to save the money on the capsules and eat oily fish a couple of times a week instead. The full list of research references is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #omega3 #hearthealth

I had a conversation recently that left me so frustrated I had to make a video about it. Someone close to me has lived with obesity for over a decade. After years of struggling, he finally found the courage to go to his GP and ask for help. He got roughly five minutes. Nobody asked about his diet, his sleep, his stress, his past attempts or what had actually failed before. He walked out with a prescription for a weight loss tablet and nothing else. No counselling, no follow up, no lifestyle advice. In this episode I explain how that tablet actually works, why handing it over on its own was never going to solve the real problem, and why I think this happens far too often across the system rather than being the fault of one doctor. I also talk about what I would have done differently with the same five or ten minutes, and why small, specific, sustainable changes matter so much more than a quick fix. The full list of research references for this episode is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #preventativehealth #nhs

If I could give one gift to everyone over 50, it would be more muscle. It protects you from falls, keeps your blood sugar steady, lifts your mood and is closely linked to a longer, healthier life. Yet it is something your doctor will almost never mention. In this episode I walk through seven proven ways to build muscle faster, covering how to train, how to eat, how often to do it and how to recover properly, all aimed at building real strength for the decades ahead. We cover progressive overload, why compound movements give you the biggest return on your time, how much protein you actually need and why it should be spread across the day, eating enough overall to support growth, training each muscle group regularly, respecting recovery and sleep, and listening to your own body for the long haul. The full list of research references is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #buildmuscle #healthyaging

The carnivore diet promises weight loss, better energy and even reversed autoimmune conditions, but as an NHS doctor I wanted to look properly at what the evidence actually shows. In this episode I go through what the diet actually involves, why people genuinely do feel better when they start it, the real problems with eating this way long term, the argument about whether humans evolved to eat only meat, and the way of eating I would recommend instead, which gives you nearly all the same benefits without the downsides. The full list of research references is in the description of the YouTube version of this video. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #carnivorediet #nutrition

Dementia affects around one in three of us over our lifetime, and it is one of the diagnoses people fear most. But a landmark 2024 Lancet Commission review found that around 45% of dementia cases could potentially be prevented or delayed by tackling risk factors that are within our control. In this episode I go through five simple exercises, three for your body and two for your mind, that can help protect your brain as you get older. None of them need a gym or expensive equipment. We cover dual task walking, dancing, strength training, active thinking like reading and writing, and staying socially connected with a real sense of purpose. The full list of research references is in the description of the YouTube version of this video. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #braincare #healthyageing

There is a tiny muscle deep in your calf called the soleus that most of you will never have heard of, and it turns out to be surprisingly useful for controlling blood sugar. Researchers at the University of Houston found that gently activating this muscle while sitting down, by doing slow repeated heel raises, could cut the blood sugar spike after a sugary drink by around 52%, with the insulin needed falling by up to 60%. Here is why that matters. When sugar floods into your blood too fast, it irritates the lining of your blood vessels and forces your pancreas to release a big surge of insulin. Do that enough times over the years and it can wear your pancreas out and push you towards insulin resistance. Muscles have a clever trick though. When they contract, they can pull sugar straight out of the blood without needing much insulin at all. The soleus is especially good at this because it is built almost entirely from slow, enduring fibres that can keep working for hours without getting tired. I want to be honest about the limits here too. This was a small lab study using a pure sugar drink rather than a normal meal, and it does not mean heel raises beat a proper walk or going to the gym. It will not undo a poor diet or reverse diabetes on its own. But the bigger lesson is the one that matters most to me. If isolating one small muscle can do this much, imagine what a short walk after eating can do when you are using your calves, thighs, glutes and core all at once. And imagine what staying gently active throughout the entire day could add up to over years and decades. So the simple version is this. Try not to sit completely still the moment you finish eating. A ten to fifteen minute walk after meals is ideal, but if that is not possible, a few minutes of heel raises, some squats, or even pottering about doing chores all help keep your muscles working and your blood sugar in check. The full list of research references for this video is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #bloodsugar #preventativehealth

A bad night's sleep does more than leave you groggy. Within days it can make your body more resistant to insulin, which means blood sugar stays higher for longer and slowly starts to damage your blood vessels, heart, brain and kidneys. This matters most if your sleep isn't really in your control. Shift workers, nurses, doctors and new parents all fall into this group, and the research shows a real difference in long term risk compared with people who sleep normally. In this episode I go through what poor sleep actually does to your blood sugar and why, then explain the exercise that the research suggests can blunt some of that damage. Short, hard interval sessions seem to let your muscles pull sugar out of the blood without needing insulin at all, which is exactly the process that bad sleep interferes with. This is not a way to undo years of poor sleep and it is not a replacement for fixing your sleep where you can. It is a practical tool for the nights you cannot avoid being short on rest. The full list of research references for this episode is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #sleep #health

America and Britain run their healthcare in almost opposite directions. One treats care as a public service funded through tax. The other runs largely on private insurance where what you get depends on what you can afford. America spends roughly double what Britain does per person on healthcare. You would expect that kind of money to buy a far healthier nation, yet when you look at life expectancy and the overall burden of disease, the two countries end up remarkably close. In this video I walk through how the two systems differ on prevention, on the thresholds doctors use to decide who counts as sick, and on the food and lifestyle environment each population actually lives in. I also look at what each system does brilliantly, where each one fails, and why neither has solved the real problem. The short version is that both countries are good at rescuing you once you are already in crisis, and both are surprisingly poor at stopping you from ever needing that rescue. That gap between treating disease and preventing it is where this whole conversation lives. The full list of research references for this video is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #healthcare #prevention

The strength you build in your 60s could decide whether you stay independent later in life or become frail. Your body has been on a slow downward curve since your 30s or 40s, and the goal is to get ahead of it before it gets ahead of you. In this video I walk through six simple movements that mirror the exact things an 80 year old needs to be able to do. Standing up from a chair without using your hands. Getting up off the floor on your own. Climbing the stairs with confidence. Walking briskly. Carrying shopping in both hands. Balancing on one leg. These aren't about building a beach body. They're about rehearsing the movements you already know you'll need for the rest of your life, the same way doctors rehearse the procedures and conversations they know they'll face one day. A broken hip is one of the worst things that can happen to an older body. As many as one in four to one in three older people who break their hip will die within the following year, and plenty more never make it back home. Training these six movements now is one of the simplest ways to protect against that. If you don't currently exercise, run through these daily. If you already train regularly, use them on your rest days to keep the most important movements ticking over. Either way, treat these as your floor, not your ceiling, and keep nudging yourself a little further as you go. The full list of research references is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #healthyageing #strengthtraining

We've all been trained to watch our cholesterol, our blood pressure, our blood sugar and our weight as if those are the only numbers that matter for how long we live. In this episode I talk about a number that almost nobody gets checked, your VO2 max, and why the research suggests it may tell you more about your lifespan than any of those familiar markers. I walk through what the big trials actually show for cholesterol, blood pressure, blood sugar and weight, then compare those gains to what a large Cleveland Clinic study found when it tracked over 122,000 people through a treadmill fitness test. The difference in risk between the least fit and the most fit group was dramatic, and the researchers found no point where the benefit of getting fitter stopped. None of this means your other numbers don't matter. The habits that improve your cholesterol, blood pressure, blood sugar and weight genuinely help each other. But raising your fitness is the one lever that reaches your lungs, heart, blood vessels, muscles and the cellular machinery inside them all at once, and it is something almost entirely within your own control. The full list of research references for this episode is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #VO2max #heartdisease

Some of the most normal looking things in your kitchen could be quietly keeping your body inflamed. In this one I go through 7 foods that the evidence links to higher inflammation and worse metabolic health, from cereals you thought were a healthy start to the day through to sugary drinks, sweets, pastries, crisps, processed meat and the truth about seed oils. I also give you 7 foods to eat instead so you finish this with something practical you can actually do tomorrow, not just another list of things to feel guilty about. The full list of research references for this episode is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #inflammation #guthealth

A large Danish study followed nearly 3,000 men and women for over a decade and found that people with the smallest thighs had a substantially higher risk of heart disease and early death, regardless of weight or belly fat. The threshold seemed to sit around 60cm of thigh circumference. Below that, risk climbed steeply, even after accounting for body fat, smoking, blood pressure, cholesterol and activity levels. The researchers believe this comes down to muscle. A small thigh is often a sign of low muscle mass across the whole body, and your legs hold the biggest muscle group you have. That muscle is where your body parks the sugar you eat, it releases signalling molecules that calm inflammation throughout your body, and it is what lets you catch yourself if you stumble. The good news is that this is one of the most changeable numbers in health. Resistance training for your lower body a couple of times a week, enough protein at each meal and staying consistent over months and years is what builds the kind of legs that keep you strong and independent for decades. The full list of research references is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #longevity #healthtips

10 years in emergency medicine. Somewhere between 50 and 60,000 patient encounters. And the same preventable problems keep arriving on the same trolleys. In this episode I share the 10 lessons I will carry with me for the rest of my career, things that I believe genuinely stack the odds in favour of a longer, healthier life. We cover recognising the warning signs of a heart attack, a stroke and a perforated bowel, why only air should ever go into your lungs, how ultra processed food quietly pushes your blood pressure and blood sugar in the wrong direction, and why muscle matters so much more than people realise as you age. I also talk about why a mind that stays challenged tends to stay sharper for longer, why hearing loss should never be ignored, why new dizziness always deserves checking out, why seat belts and attention on the road save lives, why checking your blood pressure at home from your thirties onwards matters, and why you should always trust your gut and seek a second opinion when something does not sit right. None of this guarantees anything. Life is uncertain and anything can happen. But these are the patterns I have watched play out again and again, and I believe taking even a few of them seriously could add real years to your life. The full list of research references is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #preventativehealth #emergencymedicine

I want to give you a 12 minute routine you can start tomorrow morning, and if you stick with it for 30 days it could genuinely change how you feel, sleep and move. Here it is. The moment you wake up, put your socks and shoes on, drink a large glass of water, and head straight out the door. Walk briskly for 12 minutes, and every couple of minutes stop for 20 squats or 20 walking lunges before carrying on. That is the whole thing. In those 12 minutes you get morning light into your eyes, which helps set your body clock and can improve your sleep and mood later in the day. You rehydrate after a night without fluids. You get a brisk cardio session that works your heart. And the squats and lunges build the muscle and balance that matter more and more as we get older, while also helping your body handle the blood sugar from your breakfast better. Doing it first thing, before life gets in the way, is what makes it stick. This is not meant to replace whatever exercise you already do. Think of it as the foundation you lay down before your day even starts. Give it an honest 30 days and pay attention to your sleep, mood and energy along the way. The full list of research references for this topic is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #morningroutine #healthyaging

If you arrived in my A&E having a stroke, I could often tell within seconds. But by the time anyone reaches hospital, brain tissue is already dying. This episode is about stopping that first stroke from ever happening. Dr Alex, an NHS emergency medicine doctor, shares five things he wishes everyone knew before they ever end up in his department. He starts with blood pressure, the single biggest driver of stroke risk, and explains why it causes damage silently for years without any warning signs. Then he covers blood sugar, and why a simple blood test can catch problems long before they scar your arteries. The third point is about building muscle and staying active, which helps control both blood sugar and blood pressure at the same time. The fourth brings together smoking, ultra processed food and alcohol, and why cutting these back protects your arteries for good. Finally, he explains the warning signs of a mini stroke, why they matter so much, and why acting fast could be the difference between a scare and a tragedy. This is not about ignoring medication. If your doctor has prescribed something for your blood pressure, cholesterol or heart rhythm, there is almost certainly a good reason for it. These five habits work alongside medication, not instead of it. The full list of research references is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #strokeprevention #nhsdoctor

Some of the most commonly prescribed medications become far riskier once you get older, yet they rarely get looked at again once they've been started. In this episode I go through seven medications I would want reviewed closely if my own parents or grandparents were taking them long term. This includes sleeping tablets, benzodiazepines, certain antihistamines, a common blood pressure tablet, gabapentin and pregabalin, PPIs, and NSAIDs. None of these drugs are bad. Many of them are genuinely life changing for the right person. The question is simply whether the benefits still outweigh the risks as the body ages and clears medication more slowly. If someone you love has been on one of these for years, the best next step is a proper medication review with their doctor or pharmacist, going through each tablet and asking whether it is still needed. Please do not stop any of these on your own. Several of them need to be reduced slowly and safely under medical supervision. The full list of research references is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #preventativehealth #medicationsafety

Collagen is everywhere at the moment, even on the counter of my gym coffee shop. So I wanted to strip away the marketing and actually look at the research behind it. When you swallow collagen your body breaks it down into the same amino acids you get from any protein, then uses them wherever they are needed most. It does not get sent straight to your face or your joints. For skin, the trials funded by supplement and beauty companies show a benefit, but the independent, higher quality trials show none at all. For joints, the evidence is a little stronger, though it still mostly comes from the companies selling the product, so it has to be treated with real caution. For slowing ageing across your whole body, there simply is not evidence that collagen does this. What actually protects your skin and your joints and helps you live longer is sun protection, building muscle, staying active, managing your weight and eating real food. These are the free things that keep coming up again and again in the proper research. The full list of research references is in the description of the YouTube version of this video. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #collagen #preventativehealth

People assume that because I make videos about health and longevity my daily diet must be complicated and expensive. It really isn't. The foods that do the most for your long term health tend to be simple, cheap and pretty much the same most weeks. In this video I go through the eight foods I actually eat on a regular basis, from dark leafy greens and fermented foods to nuts, dark coloured fruit and veg, oily fish, coffee, raw veg before dinner and eggs. I explain why each one matters, how the research backs them up and how I actually fit them into a normal working week as an emergency medicine doctor. This isn't a rigid set of rules and it isn't about being perfect every day. It's about building a pattern you can keep going for the rest of your life, and every healthy choice you make is also a chance you didn't spend on something ultra processed instead. The full list of research references is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #nutrition #preventativehealth

10,000 steps a day. Where did that number even come from? It turns out it wasn't from any big trial. It started in Japan in the 1960s as a marketing name for one of the first pedometers, built around the Tokyo Olympics. It just stuck. When researchers actually studied step counts properly, the picture looked kinder than the slogan. In one large study of around 16,000 older women, the risk of dying kept falling as steps increased, but the benefit levelled off at around 7 and a half thousand steps. A later analysis across several countries found something similar, with the plateau sitting a bit lower for adults over 60 and a bit higher for younger adults. So for a lot of you watching, especially if you are over 50, 7,500 steps captures nearly all the benefit, and it is a target you can actually hit rather than one that leaves you feeling guilty. Steps are only part of the picture though. In the video I talk through three things that matter just as much: steady aerobic movement, short bursts of real effort, and resistance training a couple of times a week. Even small amounts add up. One study found that just a few minutes a day of vigorous movement, things like hurrying for a bus or carrying shopping upstairs, was linked to a big drop in deaths from heart disease and cancer. Another found that as little as 30 to 60 minutes of resistance training a week was tied to a meaningfully lower risk of dying, developing heart disease, diabetes and cancer. The honest advice is to build this up slowly. Start with walking more through your day, then stretch that out, then add gentle bursts of effort, then add resistance training once walking feels normal. A routine you can actually keep going beats a perfect one you give up on after two weeks. The full list of research references for this video is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #steps #preventativehealth

There's one measurement you can take at home in about thirty seconds with nothing more than a piece of string, and it turns out to be one of the most powerful predictors of how long you'll live and how healthy you'll be along the way. Most doctors still lean on BMI, but BMI was built from population data back in the 1800s and was never designed to judge an individual's health. It can't tell the difference between muscle and fat, or where that fat is actually sitting on your body. The far better measurement is your waist to height ratio. The rule is simple: your waist should measure less than half your height. Cross that line and your risk of metabolic disease starts climbing, and research across major journals shows this ratio consistently outperforms BMI at predicting heart disease, diabetes, stroke and overall mortality. In this episode I explain why visceral fat, the fat you can't pinch, sitting deep around your organs, behaves almost like a gland, constantly releasing inflammatory chemicals that damage your liver, your blood vessels and your metabolism over time. Then I share three things you can start today that should bring your waist size down over the coming weeks: cleaning up what you eat, building muscle through resistance training, and protecting your sleep. The full list of research references is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #preventativehealth #visceralfat

Every single person who finished this study lost weight. Not most, not the ones with the most willpower, every single one of them. The TOWARD study followed 50 employees at a manufacturing company for a full year. Their average BMI was over 40, so this was a group dealing with serious obesity and all the health problems that come with it. They went on a ketogenic diet, eating under 20 to 30 grams of carbs a day, roughly what you'd find in a small banana. No calorie counting, no being told to eat less. Just eat when hungry, stop when full. The other half of the story is the support they had. Coaching, healthcare access by text, continuous glucose monitors and ketone meters so they could see the effect of their meals almost instantly. Around 82% stuck with it for the full year, and on average they lost about 12% of their body weight, roughly three stone. As people got healthier, their medications got deprescribed too, including some of the expensive weight loss injections everyone's talking about, saving their employer thousands per person a year. But before anyone drops everything for keto tomorrow, there are a few things worth knowing. This was a tiny study with no comparison group, so we can't separate how much came from the diet itself versus all that intensive support. Around one in five people dropped out, and it's often the ones who are struggling who quietly disappear from these numbers. And twelve months tells us very little about what happens over a lifetime. For me, the real lesson isn't about keto specifically. It's that cutting out ultra processed, refined carbohydrates and eating real, whole food tends to fill you up naturally, without ever needing to count a calorie. You don't need full keto to get that effect, and something you can actually sustain for decades matters more than something dramatic that only lasts a year. The full list of research references is in the description of the YouTube version of this video. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #weightloss #keto

Creatine has gone from a bodybuilding powder to one of the most talked about supplements for people over 50. I wanted to actually look at what the evidence says about your muscle and your brain, and just as importantly, who should probably leave it alone. The muscle evidence is genuinely solid, but only if you are already doing resistance training. Without that, there is nothing for creatine to work with. The brain evidence is narrower than people think. It seems to help memory and mental processing speed in older adults, but it does not lower your risk of dementia. I also cover why your kidney blood test can look different once you start taking creatine, and who should avoid it altogether, including anyone with reduced kidney function. The full list of research references is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #creatine #healthyaging

If I had to boil down long term health into one single number, it would be your VO2 max. This is a measure of how much oxygen your body can take in and actually use when you are working as hard as you possibly can, and it depends on your lungs, your heart, your blood vessels and the tiny mitochondria inside your muscle cells all working together. One of the biggest studies of its kind followed over 100,000 people and found that the least fit people had a risk of dying that was as bad as, and in some cases worse than, smoking or diabetes. The fitter people were, the longer they tended to live, with no ceiling where the benefit stopped. From around your 30s, VO2 max naturally falls by roughly 10 percent every decade if you do nothing about it. That slow decline is a big part of why people gradually lose the ability to climb stairs or carry shopping without stopping. So how do you raise it. A large meta analysis of more than 50 studies found that high intensity interval training tends to improve VO2 max faster than steady, gentle exercise. In the video I walk through two specific protocols the research points to, and explain how to work out roughly what effort level you should be aiming for. I also share a personal story about a stress fracture I got years ago while training for a triathlon, and why that changed how careful I now am about balancing hard interval work with recovery. The full weekly approach I recommend covers steady cardio, resistance training, interval sessions and simply moving more through the day. The whole point of raising your VO2 max is reserve. The bigger your engine, the more you have in the tank for whatever life throws at you as you get older. The full list of research references for this episode is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #vo2max #longevity

For most of my career in emergency medicine, I have been harming my patients. Not with a scalpel or the wrong drug. Something much quieter than that. By the time someone arrives at A&E with chest pain, their disease is often decades old. The real moment to help them was twenty or forty years earlier, with honest education about what actually causes it. In this episode I talk about why the system waits, why medical training barely touches prevention, and why there is very little financial incentive to stop disease before it starts. The full list of research references is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #preventativehealth #emergencymedicine

A YouTube video claimed magnesium cuts your risk of insulin resistance by 71 percent and lowers your chance of type 2 diabetes by 47 percent over 20 years. Those numbers are real, but look at where they come from. Both figures come from observational studies where nobody was actually given a magnesium supplement. People simply reported what they ate, and the ones eating the most magnesium happened to be eating the most whole food and the most fibre. When researchers strip out the effect of fibre, the link between magnesium and insulin resistance largely disappears. Magnesium was simply travelling alongside the food that actually mattered. When magnesium is tested properly, on its own, against a dummy pill, the effect on insulin resistance is small. It barely touches fasting blood sugar, insulin, or your long term marker HbA1c unless it's taken for months or years. The same video claimed vitamin D dropped diabetes progression from 28 percent down to 3 percent. The large careful trials show a real reduction of around 11 to 12 percent, and often not even large enough to be confident it isn't down to chance. There's a safety point worth knowing too. The suggested upper limit for supplemental magnesium is 350mg a day. Go above that and it commonly causes diarrhoea, which can leave you dehydrated and flush out other minerals your body needs. The standard blood test for magnesium is close to useless as well, since only around 1 percent of your body's magnesium is actually sitting in your blood. What genuinely shifted the numbers in proper trials was lifestyle. In the Diabetes Prevention Program, people who changed how they ate, moved, and walked around 150 minutes a week cut their diabetes risk by 58 percent. Metformin, one of the most prescribed diabetes drugs on the planet, only managed 31 percent. If you already eat real, whole food and move your body regularly, you're almost certainly getting plenty of magnesium from your plate already, and adding a supplement on top is unlikely to make any noticeable difference. The full list of research references for this video is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #magnesium #insulinresistance

My father in law Paul is 67 and was up on our roof this week fitting stone tiles that weigh 30 to 40 kilos each. His hands are the size of a dustbin lid and his forearms are wider than his upper arms. He built that body over 50 years of farming and building work, and he explains a study better than any chart could. Back in 2015 the PURE study followed almost 140,000 people across 17 countries and simply measured how hard they could squeeze a grip device. For every 5 kilos of grip strength a person was missing, their risk of dying from any cause rose by roughly 16 percent, and their risk of dying from heart disease rose by around 17 percent. Grip strength predicted death, including cardiovascular death, more accurately than systolic blood pressure did. Later work in half a million people through the UK Biobank pointed the same way, tying weaker grip to higher rates of heart disease, several cancers and earlier death. The number on a grip device isn't really the point though. It is just the shadow cast by decades of a body being worked hard and fed well. Muscle behaves like an organ in its own right. It stores the sugar you absorb from food, so a well muscled body keeps blood sugar and insulin lower, while a sedentary body lets sugar linger and slowly stiffen and scar blood vessels. Muscle also releases signalling molecules called myokines that calm inflammation throughout the body. And when you become seriously unwell, muscle is the protein reserve your body draws on to fuel recovery, which is why frailty and low muscle mass predict poor survival across so many illnesses. None of this is quick. You cannot revise for a grip test the night before and there is no supplement or medication that builds it for you. It comes from lifting heavy things regularly, ideally at least three times a week, and eating enough protein, aiming for around 1.2 grams per kilo of body weight spread across the day, checked with your doctor if you have any kidney concerns. The encouraging part is that this system stays open at any age. Even people in their 80s and 90s can build real strength when they train against resistance and eat enough protein to support it. Paul doesn't see doctors and doesn't check his blood pressure, but he has spent five decades doing the things that protect him anyway. That is what a strong grip is really reporting on. The full list of research references for this episode is in the description of the YouTube version. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #gripstrength #preventativehealth

High blood pressure causes most strokes and heart attacks, and it does this without you ever feeling it. That is exactly why checking it properly every single week matters so much. Here is the catch though. The way you actually take the reading changes the number you get. Small things like rushing to the chair, talking while the cuff inflates, resting your arm too low, using the wrong cuff size, crossing your legs, or trusting just one reading can shift your result by enough to change a diagnosis completely. In this video I go through the seven common mistakes people make when measuring their blood pressure at home or in clinic, why each one actually matters physiologically, and what the research shows about how far each one can shift the number. The full list of research references I used is in the description of the YouTube version of this video. Disclaimer: This is not personal medical advice and does not override what your doctor says. #dralex #bloodpressure #hearthealth