What's Up Docs?

Welcome to What’s Up Docs?, the podcast where identical twin doctors Chris and Xand van Tulleken cut through the confusion around every aspect of our health and wellbeing.

In this episode, they turn their attention to our feet. They explore the biology and mechanics of our feet and what happens when that delicate balance goes wrong. They also look at footwear and the little changes that can go a long way in giving our feet the love and care they truly deserve.

Joining them is Anthony Redmond, Professor of Clinical Biomechanics at the Leeds Institute of Rheumatic and Musculoskeletal Medicine. A podiatrist by training, Professor Redmond researches the relationship between mechanics and biology in musculoskeletal conditions, with a focus on the foot and ankle.

If you want to get in touch, you can email us at whatsupdocs@bbc.co.uk or WhatsApp us on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Professor Anthony Redmond Producer: Faye Lyons-White Executive Producer: Jo Rowntree Editor: Researcher: Samara Linton Tech Lead: Reuben Huxtable Visual Producer: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Ruth Rainey

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4

Chris and Xand take a closer look at cholesterol - what it is, why it worries so many people, and how diet and medicine fit into the picture. They’re joined again by Professor Nita Forouhi, Professor of Population Health and Nutrition at the University of Cambridge, to discuss why foods like seed oils become controversial, when cholesterol-lowering drugs such as statins make sense, and how her thinking on cholesterol has evolved over her career.

Presenters: Drs Chris and Xand van Tulleken Guest: Professor Nita Forouhi Producer: Faye Lyons-White Executive Producer: Rami Tzabar Editor: Jo Rowntree Researcher: Grace Revill Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Olga Reed

At the BBC:

Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4.

Welcome to What’s Up Docs?, the podcast where doctors and identical twins Chris and Xand van Tulleken untangle the confusion around every aspect of our health and wellbeing.

In this episode, they take on one of nutrition’s most misunderstood topics: fat. What is it, and why does our body need it? At what point does something normal and essential become something we worry about? What do cholesterol blood tests actually measure, and how well do they predict disease?

Chris and Xand also explore the relationship between diet and cholesterol, asking how much influence what we eat really has, whether certain fats deserve their bad reputation, and what gets lost when we focus on single nutrients instead of overall dietary patterns.

They’re joined by Nita Forouhi, Professor of Population Health and Nutrition at the University of Cambridge, to help separate evidence from hype and offer a clearer way to think about fat, cholesterol, and healthy eating.

If you want to get in touch, you can email us at whatsupdocs@bbc.co.uk or WhatsApp us on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Professor Nita Forouhi Producer: Faye Lyons-White Executive Producer: Rami Tzabar Editor: Jo Rowntree Researcher: Grace Revill Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Olga Reed

At the BBC:

Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4

Chris and Xand continue their conversation about the sun's effect on our happiness with Professor Hester Parr, human geography and research lead of Living with Seasonal Affective Disorder.

The doctors want to know how low light affects those with Seasonal Affective Disorder (SAD), how the disorder is viewed and what research is being done to help treat those with it, including that being conducted by Professor Parr.

If you’d like to share your thoughts on this or any other topic covered on the podcast, you email us at whatsupdocs@bbc.co.uk or Whatsapp on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Professor Hester Parr Producer: Claire Justin Visual Producer: Leon Gower Executive Producer: Jo Rowntree Editor: Claire Justin Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4.

Welcome to What’s Up Docs?, the podcast where doctors and identical twins Chris and Xand van Tulleken cut through the confusion around every aspect of our health and wellbeing.

In this episode, Chris and Xand will shine a light on…light. They discuss why the sun can help lift our mood, and its effects on our sleep and general wellbeing. Joining them to discuss this is Professor Hester Parr, a professor of Human Geography with an interest in sunlight's effect on mental health and runs the research group Living with Seasonal Affective Disorder.

If you want to get in touch, you can email us at whatsupdocs@bbc.co.uk or WhatsApp us on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Professor Hester Parr Producer: Claire Justin Video Producer: Leon Gower Executive Producer: Rami Tzabar Editor: Jo Rowntree Tech Lead: Reuben Huxtable Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4

Chris and Xand continue their conversation about how the built environment affects our health, with architect Lisa Finlay from Heatherwick Studio.

They ask when wellbeing first became a serious consideration in architecture, how Lisa weaves it into her own projects, and whether cities can be designed in ways that actively support public health.

They also explore what the “healthy building” of the future might look like, and whether architecture could play a bigger role in preventing illness before it starts.

If you’d like to share your thoughts on this or any other topic covered on the podcast, you email us at whatsupdocs@bbc.co.uk or Whatsapp on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Lisa Finlay Producer: Faye Lyons-White Visuals Producer: Leon Gower Executive Producer: Rami Tzabar Editor: Jo Rowntree Researcher: Grace Revill Assistant Producer: Maia Miller-Lewis Tech Lead: Reuben Huxtable Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

Welcome to What’s Up Docs?, the podcast where doctors and identical twins Chris and Xand van Tulleken explore the building blocks of our health and wellbeing.

In this episode, they step outside into the built environment to ask: can buildings affect our health? From light and air to noise, materials and design, they explore how architecture shapes the way we feel, think and function.

They visit Coal Drops Yard to see how a former industrial site was transformed into a modern public space, ask whether wellbeing is something architects actively design for, and explore what small changes we can all make to create healthier spaces. To help answer these questions, they’re joined by architect Lisa Finlay from Heatherwick Studio.

If you want to get in touch, you can email us at whatsupdocs@bbc.co.uk or WhatsApp us on 08000 665 123. Presenters: Drs Chris and Xand van Tulleken Guest: Lisa Finlay Producer: Faye Lyons-White Visuals Producer: Leon Gower Executive Producer: Rami Tzabar Editor: Jo Rowntree Assistant Producer: Maia Miller-Lewis Researcher: Grace Revill Tech Lead: Reuben Huxtable Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Olga Reed

At the BBC:

Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts A Loftus Media production for BBC Radio 4

Chris and Xand continue their conversation about hips with Dr Paulina Kloskowska, physiotherapist, academic, and researcher.

The doctors discuss hip replacements, how they can potentially be avoided and which activities best support hip health. They also want to learn more about why women are more likely to need a hip replacement and what research is being done to change the landscape of women’s hip health.

If you’d like to share your thoughts on this or any other topic covered on the podcast, you email us at whatsupdocs@bbc.co.uk or Whatsapp on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Dr Paulina Kloskowska Producer: Maia Miller-Lewis Video Producer: Leon Gower Executive Producer: Rami Tzabar Editor: Jo Rowntree Researcher: Mili Ostojic Tech Lead: Reuben Huxtable Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Jaz Harvey

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4.

Welcome to What’s Up Docs?, the podcast where doctors and identical twins Chris and Xand van Tulleken cut through the confusion around every aspect of our health and wellbeing.

In this episode, Chris and Xand dive into hip health. How do your hips work? Why is it such a unique part of the body? What can go wrong? They also examine common hip injuries, how women’s hips differ from men’s, how our hips change over our lifetimes, whether a little wear and tear is normal, how best to protect and strengthen your hips and whether a hip replacement can really be avoided.

Joining them to discuss this is Dr Paulina Kloskowska - physiotherapist, academic, and researcher, with a particular focus on injuries involving the pelvis, lower back, hip and groin, as well as on improving injury prevention, biomechanics and rehabilitation in female athletes.

If you want to get in touch, you can email us at whatsupdocs@bbc.co.uk or WhatsApp us on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Dr Paulina Kloskowska Producer: Maia Miller Lewis Executive Producer: Rami Tzabar Editor: Jo Rowntree Researcher: Mili Ostojic Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Ruth Rainey

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4

Chris and Xand continue their conversation about toothache with Praveen Sharma, Associate Professor & Honorary Consultant in Restorative Dentistry at the University of Birmingham.

They explore how dental pain was treated in the past, and what’s changed since. They also explore how modern lifestyles and diets may be contributing to dental problems.

If you’d like to share your thoughts on this or any other topic covered on the podcast, you email us at whatsupdocs@bbc.co.uk or Whatsapp on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Dr Praveen Sharma Producer: Maia Miller-Lewis Executive Producer: Rami Tzabar Editor: Jo Rowntree Researcher: Grace Revill Tech Lead: Reuben Huxtable Visual Producer: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Ruth Rainey

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4.

Welcome to What’s Up Docs?, the podcast where doctors and identical twins Chris and Xand van Tulleken get to the root of what shapes our health and wellbeing.

In this episode, they ask why our teeth so often cause pain and problems. They look at how teeth work, why they’re so prone to decay, and what actually causes toothache. They ask when it’s time to see a dentist, what helps with the pain, and whether there’s anything we can do ourselves to prevent it.

To help answer these questions, they’re joined once again by Praveen Sharma, Associate Professor and Honorary Consultant at the University of Birmingham.

If you want to get in touch, you can email us at whatsupdocs@bbc.co.uk or WhatsApp us on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Dr Praveen Sharma Producer: Maia Miller-Lewis Executive Producer: Rami Tzabar Editor: Jo Rowntree Researcher: Grace Revill Tech Lead: Reuben Huxtable Visual Producer: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Ruth Rainey

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4

Chris and Xand continue their conversation about endometriosis with Kate Haynes, Chartered Human Physiotherapist and Veterinary Physiotherapist.

The doctors want to know how to maintain shoulder health year-round, how to avoid overworking our shoulders and some top tips for rehabilitation of shoulder injuries. They also want to learn more from Kate about the similarities and differences between human and horse anatomy, including the common issues she sees with riders versus horses, how these issues are dealt with and what we can learn from the comparative anatomy of horses and humans.

If you’d like to share your thoughts on this or any other topic covered on the podcast, you email us at whatsupdocs@bbc.co.uk or Whatsapp on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Kate Haynes Producer: Faye Lyons-White and Maia Miller-Lewis Executive Producer: Rami Tzabar Editor: Jo Rowntree Researcher: Mili Ostojic Tech Lead: Reuben Huxtable Visual Producer: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4.

Welcome to What’s Up Docs?, the podcast where doctors and identical twins Chris and Xand van Tulleken cut through the confusion around every aspect of our health and wellbeing.

In this episode, Chris and Xand dive into shoulder health. How do your shoulders work? What can go wrong? What to do if you experience problems with your shoulders? They also examine how best to maintain shoulder health through exercises like weightlifting and paying attention to your posture, highlight some important lessons about shoulder health that we can all utilise in our daily lives, and get an insight into what it's like to work with both horses and humans as a physiotherapist.

Joining them to discuss this is Kate Haynes, Chartered Human Physiotherapist and Veterinary Physiotherapist, primarily working with horses and their riders, including for the GB Para Dressage Team.

If you want to get in touch, you can email us at whatsupdocs@bbc.co.uk or WhatsApp us on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Kate Haynes Producer: Faye Lyons-White Executive Producer: Rami Tzabar Editor: Jo Rowntree Assistant Producer: Maia Miller-Lewis Researcher: Mili Ostojic Tech Lead: Reuben Huxtable Visual Producer: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4

Chris and Xand continue their conversation about endometriosis with Dr Chi Eziefula, Associate Professor in Global Health and Infection at Brighton and Sussex Medical School.

The doctors want to know what the deeper biology of endometriosis is, how general attitudes around women’s health impact the time it takes to be diagnosed with conditions, and if we are seeing any change in the research and social landscape surrounding endometriosis. They also explore how medical training impacts doctors' ability to identify and diagnose women’s health conditions like endometriosis, which currently have an average time to diagnosis of seven and a half years.

If you’d like to share your thoughts on this or any other topic covered on the podcast, you email us at whatsupdocs@bbc.co.uk or Whatsapp on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Dr Chi Eziefula Producer: Maia Miller-Lewis Executive Producer: Jo Rowntree Editor: Faye Lyons-White Assistant Producer: Faye Lyons-White Researcher: Mili Ostojic Tech Lead: Reuben Huxtable Visual Producer: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4.

Welcome to What’s Up Docs?, the podcast where doctors and identical twins Chris and Xand van Tulleken cut through the confusion around every aspect of our health and wellbeing.

In this episode, Chris and Xand dive into endometriosis, a condition that occurs when cells similar to the ones in the lining of the womb (uterus) grow in other areas of the body. It affects around one in ten women of reproductive age, often causing severe pain, mental health issues and in some cases, it can result in infertility. In this episode, the doctors discuss the symptoms of endometriosis, the theories about its biological mechanisms and underlying cause, and why the condition is under-researched and under-funded, resulting in patients waiting on average 7.5 years to be diagnosed.

Joining them to discuss this is Dr Chi Eziefula, Associate Professor in Global Health and Infection at Brighton and Sussex Medical School and an Honorary Consultant physician.

If you want to get in touch, you can email us at whatsupdocs@bbc.co.uk or WhatsApp us on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Dr Chi Eziefula Producer: Maia Miller-Lewis and Faye Lyons-White Executive Producer: Rami Tzabar Editor: Jo Rowntree Researcher: Mili Ostojic Tech Lead: Reuben Huxtable Visual Producer: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts A Loftus Media production for BBC Radio 4

Chris and Xand continue their conversation about immune health with Prof Dan Davis, Head of Life Sciences and Professor of Immunology at Imperial College London.

The doctors want to know more about the deeper biology of the immune system. Is it true that a bit of stress prevents infection, while chronic stress is detrimental to your immune system? Why does intense exercise drop the immune response? They also examine autoimmune diseases, what they are and what they do to the body.

If you’d like to share your thoughts on this or any other topic covered on the podcast, you email us at whatsupdocs@bbc.co.uk or Whatsapp on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Prof Daniel Davis Producer: Faye Lyons-White Executive Producer: Rami Tzabar Editor: Jo Rowntree Assistant Producer: Maia Miller-Lewis Researcher: Mili Ostojic Tech Lead: Reuben Huxtable Visual Producer: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4.

Welcome to What’s Up Docs?, the podcast where doctors and identical twins Chris and Xand van Tulleken cut through the confusion around every aspect of our health and wellbeing.

What defines a well-functioning immune system, and why are some people seemingly "immune" to everything while others catch every cold? In this episode, Chris and Xand dive into the complex mechanics of immunology. They tackle the controversial trend of "immune boosting" and discuss the delicate balance between under-active and over-active responses.

To help unpick this, they're joined by Professor Dan Davis, Head of Life Sciences and Professor of Immunology at Imperial College London and author of Self-Defence - a myth-busting guide to immune health.

If you want to get in touch, you can email us at whatsupdocs@bbc.co.uk or WhatsApp us on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Prof Daniel Davis Producer: Faye Lyons-White Executive Producer: Rami Tzabar Editor: Jo Rowntree Assistant Producer: Maia Miller-Lewis Researcher: Mili Ostojic Tech Lead: Reuben Huxtable Visual Producer: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4

Chris and Xand dig deeper into the evolution of kissing. They ask what first drew our guest into this unusual area of research, why evidence that humans and Neanderthals kissed is so significant, and why it’s so challenging to explain why kissing developed in the first place.

If you’d like to share your thoughts on this or any other topic covered on the podcast, you email us at whatsupdocs@bbc.co.uk or Whatsapp on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Dr Matilda Brindle Producer: Maia Miller-Lewis Executive Producer: Rami Tzabar Editor: Jo Rowntree Researcher: Grace Revill Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Ruth Rainey

At the BBC:

Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4.

Welcome to What’s Up Docs?, the podcast where doctors and identical twins Chris and Xand van Tulleken try to get to the bottom of the ideas shaping our health and wellbeing.

In this Valentine’s Day-themed episode, they turn their attention to kissing. Why do humans kiss, how did it evolve, and does it offer any biological advantage? They also explore the meaning behind different types of kisses and whether kissing is truly universal among humans – and what it means if it isn’t.

To help them untangle the science behind one of our most intimate behaviours, they’re joined by Evolutionary Biologist, Dr Matilda Brindle. If you want to get in touch, you can email us at whatsupdocs@bbc.co.uk or WhatsApp us on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Dr Matilda Brindle Producer: Maia Miller-Lewis Executive Producer: Rami Tzabar Editor: Jo Rowntree Researcher: Grace Revill Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Ruth Rainey

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4

Drs Chris and Xand continue their conversation about focus with Duncan Astle, Professor of Neuroinformatics at the Department of Psychiatry at Cambridge University.

Chris and Xand want to know what the impact of having ADHD is, whether a diagnosis can help and if it can predict anything, the neurology and evolutionary explanations for ADHD, and which interventions are currently available. They also explore some controversial ways of improving focus and hear Dr Astle’s personal and clinical perspective on focus and ADHD.

If you’d like to share your thoughts on this or any other topic covered on the podcast, you email us at whatsupdocs@bbc.co.uk or Whatsapp on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Dr Duncan Astle Producer: Maia Miller-Lewis Executive Producer: Rami Tzabar Editor: Jo Rowntree Assistant Producer: Maia Miller-Lewis Researcher: Mili Ostojic Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Ruth Rainey

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4.

Welcome to What’s Up Docs?, the podcast where doctors and identical twins Chris and Xand van Tulleken cut through the confusion around every aspect of our health and wellbeing.

In this episode, Chris and Xand dive into focus and how it can be improved. How do focus and attention work? Are there different types of attention? What impacts your ability to focus? Is social media ruining your focus? How can you improve? They explore the neurology of focus and attention, why you might find it difficult to focus, and how you can get better at it.

Joining them to discuss this is Duncan Astle, Professor of Neuroinformatics at the Department of Psychiatry at Cambridge University, and leader of the 4D Research Group, which looks at childhood development and developmental disorders.

If you want to get in touch, you can email us at whatsupdocs@bbc.co.uk or WhatsApp us on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Dr Duncan Astle Producer: Maia Miller-Lewis Executive Producer: Rami Tzabar Editor: Jo Rowntree Researcher: Mili Ostojic Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Ruth Rainey

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4

In this Daily Dose, Chris and Xand return to their episode on laughter with Professor Sophie Scott CBE, a leading expert in the neuroscience of laughter, from University College London. Sophie explained how laughter is a positive, evolutionary trait that we all go on a journey to understand as we grow up.

Daily Doses of expert wisdom from previous episodes will be dropping each weekday throughout January (except Tuesdays). You'll find them in the What’s Up Docs? feed on BBC Sounds, alongside all the main episodes of the podcast.

In this Daily Dose, Chris and Xand return to their episode on core strength with physiotherapist James Moore. James highlighted why exercising our core can help us live long and strong, but doesn’t have to mean hitting the gym hard.

Daily Doses of expert wisdom from previous episodes will be dropping each weekday throughout January (except Tuesdays). You'll find them in the What’s Up Docs? feed on BBC Sounds, alongside all the main episodes of the podcast.

In this Daily Dose, Chris and Xand return to their episode on fibre with Dr Deirdre Tobias. Deirdre outlined why fibre is important for our diets and where we should be getting it from.

Daily Doses of expert wisdom from previous episodes will be dropping each weekday throughout January (except Tuesdays). You'll find them in the What’s Up Docs? feed on BBC Sounds, alongside all the main episodes of the podcast.

Drs Chris and Xand continue their conversation about food with Professor of Psychology Ashley Gearhardt. Drawing on her clinical experience, they explore what it means to live with food addiction and how shame and stigma make it harder to talk openly, seek help, or make changes. They also explore how Ashley came to study food addiction, and the links between industrial processing of food and tobacco.

Presenters: Drs Chris and Xand van Tulleken Guest: Professor Ashley Gearhardt Researcher: Samara Linton Producer: Maia Miller-Lewis Social Media Producer: Leon Gower Executive Producer: Rami Tzabar Editor: Jo Rowntree Tech Lead: Reuben Huxtable Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4.

Welcome to What’s Up Docs?, the podcast where doctors and identical twins Chris and Xand van Tulleken cut through the confusion around every aspect of our health and wellbeing.

In this episode, Chris and Xand turn their attention to food. It’s January, and many of us have resolved to “eat better” but why does it so often feel like an uphill battle? Why do we crave certain foods and not others? And what does a genuinely healthy relationship with food look like?

They explore the science behind how our brains and bodies respond to food, and why willpower alone is rarely enough when it comes to eating well. From ultra-processed foods that trigger addictive-like responses to the influence of marketing, availability and convenience, they unpack why eating well is about much more than individual choice, and what actually helps us eat well in the long term.

Joining them is Ashley Gearhardt PhD, Professor of Psychology at the University of Michigan, whose research focuses on how certain foods can trigger addictive processes and how food advertising activates reward systems in the brain. She also developed the Yale Food Addiction Scale, a widely used tool to assess signs of addictive-like eating behaviour.

Presenters: Drs Chris and Xand van Tulleken Guest: Professor Ashley Gearhardt Researcher: Samara Linton Producer: Maia Miller-Lewis Social Media Producer: Leon Gower Executive Producer: Rami Tzabar Editor: Jo Rowntree Tech Lead: Reuben Huxtable Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4

In this Daily Dose, Drs Chris and Xand return to their episode on fresh breath with Dr Praveen Sharma. Praveen walked the docs through the best way to take care of our teeth and how we should be thinking about our oral health.

Daily Doses of expert wisdom from previous episodes will be dropping each weekday throughout January (except Tuesdays). You'll find them in the What’s Up Docs? feed on BBC Sounds, alongside all the main episodes of the podcast.

In this Daily Dose, Chris and Xand return to their episode on the power of saying no, with Dr Sunita Sah from Cornell University. Sunita had a fantastic point on how saying no is linked to our values - and how we can figure out what our values are.

Daily Doses of expert wisdom from previous episodes will be dropping each weekday throughout January (except Tuesdays). You'll find them in the What’s Up Docs? feed on BBC Sounds, alongside all the main episodes of the podcast.

In this Daily Dose, Chris and Xand return to their episode on backs with Dr Mindy Cairns, Specialist Musculoskeletal Physiotherapist and Associate Professor at the University of Hertfordshire. Mindy offered some excellent insight into fear avoidance when it comes to back pain, and why we perhaps don’t need to be a fearful as we may think.

Daily Doses of expert wisdom from previous episodes will be dropping each weekday throughout January (except Tuesdays). You'll find them in the What’s Up Docs? feed on BBC Sounds, alongside all the main episodes of the podcast.

In this Daily Dose, Chris and Xand are return to their episode on protein with Nita Forouhi, Professor of Population Health and Nutrition at the University of Cambridge. Nita had a very clear message - get your protein from wholefoods, rather than supplements.

Daily Doses of expert wisdom from previous episodes will be dropping each weekday throughout January (except Tuesdays). You'll find them in the What’s Up Docs? feed on BBC Sounds, alongside all the main episodes of the podcast.

Chris and Xand continue their conversation about exercise with Dr Jo Blodgett, Senior Research Fellow at the Institute of Sport, Exercise and Health at University College in London. She’s a life-course epidemiologist whose work focuses on how movement across the whole 24-hour day shapes population health.

They talk to Jo about her own sporting background as a semi-professional national league footballer, the impact of the menstrual cycle on sporting performance and the best way to approach exercise as we age, particularly for women approaching or experiencing the menopause.

If you’d like to share your thoughts on this or any other topic covered on the podcast, you email us at whatsupdocs@bbc.co.uk or Whatsapp on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Dr Jo Blodgett Researcher: Samara Linton Producer: Faye Lyons White Social Media Producer: Leon Gower Executive Producer: Rami Tzabar Editor: Jo Rowntree Tech Lead: Reuben Huxtable Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4.

Welcome to What’s Up Docs?, the podcast where doctors and identical twins Chris and Xand van Tulleken cut through the confusion around every aspect of our health and wellbeing.

In this episode, Chris and Xand explore the role and impact of exercise on our bodies and mood. Is going to the gym three times a week the best way of keeping fit? Or should you spread out your activity in shorter bursts throughout the day? They also discover which one of the brothers is ‘an active couch potato’ and why you can’t out run a bad diet.

Joining them to discuss this is Dr Jo Blodgett, Senior Research Fellow at the Institute of Sport, Exercise and Health at University College London. She’s a life-course epidemiologist whose work focuses on how movement across the whole 24-hour day shapes population health.

If you want to get in touch, you can email us at whatsupdocs@bbc.co.uk or WhatsApp us on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Dr Jo Blodgett Researcher: Samara Linton Producer: Faye Lyons White Social Media Producer: Leon Gower Executive Producer: Rami Tzabar Editor: Jo Rowntree Tech Lead: Reuben Huxtable Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4

In this Daily Dose, Chris and Xand return to their episode on nails with Dr Yusur Al-Nuaimi, Consultant Dermatologist at the Royal Devon and Exeter Hospital and Clinical Lead for the British Hair and Nail Society. Yusur highlighted how our nails have developed to optimize human function and are deeply rooted without our evolutionary history.

Daily Doses of expert wisdom from previous episodes will be dropping each weekday throughout January (except Tuesdays). You'll find them in the What’s Up Docs? feed on BBC Sounds, alongside all the main episodes of the podcast.

In this Daily Dose, Chris and Xand are returning to their episode on sleep with Professor of Circadian Neuroscience, Russell Foster. As a sleep expert, Russell explained why we can perhaps relax a bit when it comes to sleep, especially when it comes to losing some from time to time.

Daily Doses of expert wisdom from previous episodes will be dropping each weekday throughout January (except Tuesdays). You'll find them in the What’s Up Docs? feed on BBC Sounds, alongside all the main episodes of the podcast.

In this Daily Dose, Chris and Xand return to their episode on hanger with Professor of Social Psychology, Viren Swami who explains what hanger is and how best we should deal with it.

Daily Doses of expert wisdom from previous episodes will be dropping each weekday throughout January (except Tuesdays). You'll find them in the What’s Up Docs? feed on BBC Sounds, alongside all the main episodes of the podcast.

In this Daily Dose, Chris and Xand return to their first episode of What’s Up Docs?, on willpower with Kimberley Wilson. Chartered Psychologist Kimberley reminded us that willpower might not actually be the positive, motivating force we think it is.

Daily Doses of expert wisdom from previous episodes will be dropping each weekday throughout January (except Tuesdays). You'll find them in the What’s Up Docs? feed on BBC Sounds, alongside all the main episodes of the podcast.

Chris and Xand continue their conversation about alcohol with Dr May van Schalkwyk, Research Fellow at the University of Edinburgh, who focuses on how commercial actors influence ideas, knowledge, science and policymaking.

The twins want to know why some people might struggle to get through Dry January, whether we have a drinking culture in the UK and how it may have been shaped by industry. They also examine attitudes towards alcohol in other cultures, whether attitudes towards alcohol are changing, whether low- or no-alcohol alternatives are a positive move, and how we can improve our culture around alcohol.

If you’d like to share your thoughts on this or any other topic covered on the podcast, you email us at whatsupdocs@bbc.co.uk or Whatsapp on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest:Dr May van Schalkwyk Producer: Maia Miller-Lewis and Emily Bird Executive Producer: Rami Tzabar Editor: Jo Rowntree Researcher: Mili Ostojic Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4.

Welcome to What’s Up Docs?, the podcast where doctors and identical twins Chris and Xand van Tulleken cut through the confusion around every aspect of our health and wellbeing.

In this episode, Chris and Xand dive into alcohol. Is there such a thing as a safe level of alcohol or a safe form? Are there actually any benefits to alcohol? Should teetotalism be the goal? They also explore the short- and long-term effects and harms of alcohol, including indirect harms, whether we should be doing Dry January, and what the benefits of reducing your alcohol intake are.

Joining them to discuss this is Dr May van Schalkwyk, Research Fellow at the University of Edinburgh, who focuses on how commercial actors influence ideas, knowledge, science and policymaking.

If you want to get in touch, you can email us at whatsupdocs@bbc.co.uk or WhatsApp us on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Dr May van Schalkwyk Researcher: Mili Ostojic Producer: Maia Miller-Lewis and Emily Bird Social Media Producer: Leon Gower Executive Producer: Rami Tzabar Editor: Jo Rowntree Tech Lead: Reuben Huxtable Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4

In this Daily Dose, Chris and Xand return to their episode on nature with Professor Baroness Kathy Willis. Kathy had some excellent advice on how to bring more nature into our homes and lives.

Daily Doses of expert wisdom from previous episodes will be dropping each weekday throughout January (except Tuesdays). You'll find them in the What’s Up Docs? feed on BBC Sounds, alongside all the main episodes of the podcast.

In this Daily Dose, Chris and Xand return to their episode on embarrassment with cultural historian, Dr Tiffany Watt-Smith. Tiffany identified that, while embarrassment is painful on a personal level, it is in fact an important social emotion.

Daily Doses of expert wisdom from previous episodes will be dropping each weekday throughout January (except Tuesdays). You'll find them in the What’s Up Docs? feed on BBC Sounds, alongside all the main episodes of the podcast.

In this Daily Dose, Drs Chris and Xand van Tulleken are returning to their episode on knees with rheumatology professor, Phil Conaghan from University of Leeds. Phil gave Chris some sage advice on why you shouldn't avoid exercising your knees if they give you pain from time to time.

Daily Doses of expert wisdom from previous episodes will be dropping each weekday throughout January (except Tuesdays). You'll find them in the What’s Up Docs? feed on BBC Sounds, alongside all the main episodes of the podcast.

In this Daily Dose, Chris and Xand return to their episode on menstrual health with Dr Chi Eziefula, who flipped our perspective on the menstrual cycle, reframing it as a positive, evolutionary advantage that has enabled us to survive and thrive.

Daily Doses of expert wisdom from previous episodes will be dropping each weekday throughout January (except Tuesdays). You'll find them in the What’s Up Docs? feed on BBC Sounds, alongside all the main episodes of the podcast.

In this new year episode, Chris and Xand continue their conversation with behaviour change expert Alasdair Cant, taking a closer look at the psychology behind our attempts to start afresh. They explore how Alasdair got into the field of behaviour change and the patterns that distinguish people who succeed with long-term change from those who struggle.

If you’d like to share your thoughts on this or any other topic covered on the podcast, you email us at whatsupdocs@bbc.co.uk or Whatsapp on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Alasdair Cant Producer: Maia Miller-Lewis Executive Producer: Rami Tzabar Editor: Jo Rowntree Researcher: Grace Revill Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Ruth Rainey

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4.

Welcome to What’s Up Docs?, the podcast where doctors and identical twins Chris and Xand van Tulleken untangle the confusion around every aspect of our health and wellbeing.

In this new year episode, they’re taking on the idea of the fresh start, especially the powerful urge many of us feel at the beginning of a new year to overhaul our health. Why do we want to make big changes in January? Why do our good intentions so often fall apart? And do we actually need to ‘turn over a new leaf’, or is there a better way to think about lasting change?

Chris and Xand speak to Alasdair Cant, behaviour change specialist with over 30 years’ experience. Drawing on the spirit of Motivational Interviewing, he empowers people to have open, honest conversations about change and growth. With a background in education, Alasdair works with teams and individuals to fulfil their potential in health, criminal justice, social care, education, the arts and the private sector, to get to the heart of what really drives change. With Alasdair, the docs explore why we slip back into old habits, what helps people stay on track, and how understanding the psychology of change can make new habits far more sustainable. They also ask Alasdair how his work has shaped his own life and attitudes towards making resolutions.

If you want to get in touch, you can email us at whatsupdocs@bbc.co.uk or WhatsApp us on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Alasdair Cant Producer: Maia Miller-Lewis Executive Producer: Rami Tzabar Editor: Jo Rowntree Researcher: Grace Revill Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Ruth Rainey

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4

In this Daily Dose, Chris and Xand return to their episode on difficult conversations. Chartered Psychologist Kimberley Wilson has some great advice on how best to approach a difficult conversation and what happens when we find ourselves confronted by one.

Daily Doses of expert wisdom from previous episodes will be dropping each weekday throughout January (except Tuesdays). You'll find them in the What’s Up Docs? feed on BBC Sounds, alongside all the main episodes of the podcast.

January is a time when we pay considerable attention to our health and wellbeing and we all want a little reminder of some tips and tricks for how best to care for and think about our minds and bodies.

In this Daily Dose, Chris and Xand need a refresher on the episode of What’s Up Docs? about False Memories. They were joined by Dr Linda Henkel, Professor of Psychological and Brain Sciences at Fairfield University who took them on a tour of what false memories are, how they form and why they are an unavoidable part of the human experience.

Daily Doses of expert wisdom from previous episodes of What’s Up Docs? will be dropping each weekday throughout January (except Tuesdays).

January is a month when we pay considerable attention to our health and wellbeing and we all want a little reminder of some tips and tricks for how best to care for and think about our minds and bodies.

In this first Daily Dose - if they can resist the temptation to snooze - Chris and Xand return to their episode on napping with Russell Foster, Professor of Circadian Neuroscience at the University of Oxford. Russell offered up some very clear advice on what an ideal nap could look like and how we should rethink our relationship with sleep.

Daily Doses of expert wisdom from previous episodes of What’s Up Docs? will be dropping each weekday throughout January (except Tuesdays).

Welcome to Chris and Xand's Daily Doses!

January is a month when we pay considerable attention to our health and wellbeing and we all want a little reminder of some tips and tricks for how best to care for and think about our minds and bodies.

So, alongside the four main episode of What's Up Docs?, each weekday this January (other than Tuesdays), we'll be dropping a Daily Dose of expert wisdom from a previous episode. Whether it’s your knees, willpower, oral health or bringing nature into your home, Chris and Xand have got you covered.

And then in the main episodes in January, Drs Chris and Xand will be tackling the idea of change itself before going on to look at some of the big themes we often make resolutions about: alcohol, exercise and diet.

You'll find the Daily Doses in the What’s Up Docs? feed on BBC Sounds, alongside all the main episodes of the podcast.

Chris and Xand continue their conversation with Professor Sophie Scott, CBE. Together, they explore the neuroscience behind joy: what happens in the brain when joy strikes, how spontaneous joy differs from the joy of achievement, and whether joy serves an evolutionary purpose. They also ask whether joy can be cultivated, and what a healthy relationship with joy might look like in the long term.

If you’d like to share your thoughts on this or any other topic covered on the podcast, you email us at whatsupdocs@bbc.co.uk or Whatsapp on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Professor Sophie Scott Producer: Maia Miller-Lewis Executive Producer: Rami Tzabar Editor: Jo Rowntree Researcher: Grace Revill Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4.

Welcome to What’s Up Docs?, the podcast where doctors and identical twins Chris and Xand van Tulleken try to get to the bottom of the ideas shaping our health and wellbeing.

In this festive episode, they turn their attention to joy. What actually is joy, and how is it different from happiness or pleasure? Why do some people seem to feel it more intensely, and does that make them more vulnerable to the emotional lows that can follow? They also ask whether we should really be striving for joy all the time, and whether its very fleeting nature is part of what makes it valuable.

To help them untangle the science, psychology and meaning of joy, they’re joined by Professor Sophie Scott CBE, Professor of Cognitive Neuroscience at University College London.

If you want to get in touch, you can email us at whatsupdocs@bbc.co.uk or WhatsApp us on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Professor Sophie Scott Producer: Maia Miller-Lewis Executive Producer: Rami Tzabar Editor: Jo Rowntree Researcher: Grace Revill Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Ruth Rainey

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4

Chris and Xand continue their conversation about comfort with Dr Tiffany Watt Smith, writer and cultural historian interested in the histories of emotion and medicine, former director of the Centre for the History of Emotions at Queen Mary University of London, and fellow of the Royal Historical Society.

Drs Chris and Xand van Tulleken want to know what nostalgia is, how it can affect us, how it interacts with comfort, why certain things bring us comfort, and what comfort foods are. They also examine how nostalgic foods, like cultural foods for those separated from their culture, can bring us comfort in line with its original definition, and hear Dr Watt Smith’s top tips on getting through winter, informed by history.

If you’d like to share your thoughts on this or any other topic covered on the podcast, you email us at whatsupdocs@bbc.co.uk or Whatsapp on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Dr Tiffany Watt Smith Researcher: Mili Ostojic Producer: Faye Lyons White and Rami Tzabar Social Media Producer: Leon Gower Assistant Producer: Maia Miller-Lewis Editor: Jo Rowntree Tech Lead: Reuben Huxtable Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4.

Welcome to What’s Up Docs?, the podcast where doctors and identical twins Chris and Xand van Tulleken cut through the confusion around every aspect of our health and wellbeing.

In this episode, Chris and Xand dive into winter comforts. What is comfort? How has the meaning of comfort evolved? How did the ancients find comfort in the winter? How do other cultures embrace comfort? They explore the history of comfort, especially that found in winter celebrations and rituals, discuss how traditional winter habits compare to our modern ones, and examine whether comfort is a good thing or whether we should be embracing more discomfort.

Joining them to discuss this is Dr Tiffany Watt Smith, writer and cultural historian interested in the histories of emotion and medicine, former director of the Centre for the History of Emotions at Queen Mary University of London, and fellow of the Royal Historical Society. If you want to get in touch, you can email us at whatsupdocs@bbc.co.uk or WhatsApp us on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Dr Tiffany Watt Smith Researcher: Mili Ostojic Producer: Faye Lyons White and Rami Tzabar Social Media Producer: Leon Gower Assistant Producer: Maia Miller-Lewis Editor: Jo Rowntree Tech Lead: Reuben Huxtable Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4

Drs Chris and Xand continue their conversation about hearing loss with Prof Doris Bamiou, Professor of Neuroaudiology at the UCL Ear Institute, and Honorary Consultant in Audiological Medicine at the University College London Hospitals.

Chris and Xand want to know how cognitive processing of sound works, what audio processing disorder is, why it happens, how it is diagnosed, and the external factors like neurodivergence and age that interact with it. They also examine the popular earplugs that filter speech, including whether they actually help with audio processing and how to use them responsibly, and hear Prof Bamiou’s personal and clinical perspective on hearing loss.

If you’d like to share your thoughts on this or any other topic covered on the podcast, you email us at whatsupdocs@bbc.co.uk or Whatsapp on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Prof Doris Bamiou Producer: Jo Rowntree Executive Producer: Rami Tzabar Editor: Kirsten Lass Assistant Producer: Maia Miller-Lewis Researcher: Mili Ostojic Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4.

Welcome to What’s Up Docs?, the podcast where doctors and identical twins Chris and Xand van Tulleken cut through the confusion around every aspect of our health and wellbeing.

In this episode, Chris and Xand dive into the physical side of hearing loss. What is the cocktail party problem, and why does it get worse with age? How does hearing work? What causes hearing loss? How can we protect our hearing? How can we manage hearing loss? What is tinnitus and how is it treated?

They explore the physical structures behind our hearing, the causes that can lead to physical changes and hearing loss, why it gets more difficult with age to distinguish speech in busy places, and the top tips you can use to protect and manage your hearing.

Joining them to discuss this is Prof Doris Bamiou, Professor of Neuroaudiology at the UCL Ear Institute, and Honorary Consultant in Audiological Medicine at the University College London Hospitals.

If you want to get in touch, you can email us at whatsupdocs@bbc.co.uk or WhatsApp us on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Prof Doris Bamiou Researcher: Mili Ostojic Producer: Faye Lyons White Social Media Producer: Leon Gower Executive Producer: Rami Tzabar Editor: Jo Rowntree Tech Lead: Reuben Huxtable Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4

Chris and Xand continue their conversation about dopamine with Masud Husain, Professor of Neurology & Cognitive Neuroscience at the University of Oxford. They explore how he first became interested in dopamine, what happens when dopamine systems become overactive, underactive, or disrupted, and whether we have any real control over our dopamine at all. Masud also shares the one thing he wishes everyone understood about dopamine.

If you’d like to share your thoughts on this or any other topic covered on the podcast, you email us at whatsupdocs@bbc.co.uk or Whatsapp on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Professor Masud Husain Producer: Maia Miller-Lewis Executive Producer: Rami Tzabar Editor: Jo Rowntree Researcher: Grace Revill Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4.

Welcome to What’s Up Docs?, the podcast where doctors and identical twins Chris and Xand van Tulleken untangle the confusion around every aspect of our health and wellbeing.

In this episode, they’re diving into dopamine – one of the most talked-about chemicals in modern wellness culture. But what is dopamine, really? What role does it play in pleasure, motivation, learning, and movement? And how accurate are ideas like “dopamine hits”, “dopamine detoxes”, or being “addicted to dopamine”?

Chris and Xand speak to Masud Husain, Professor of Neurology & Cognitive Neuroscience at the University of Oxford, to cut through the myths and find out what dopamine does, what it doesn’t do, and why understanding it properly might change the way we think about our behaviour and our brains.

If you want to get in touch, you can email us at whatsupdocs@bbc.co.uk or WhatsApp us on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Professor Masud Husain Producer: Maia Miller-Lewis Executive Producer: Rami Tzabar Editor: Jo Rowntree Researcher: Grace Revill Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4

Chris and Xand continue their conversation about belief with Ryan McKay, Professor of Psychology at Royal Holloway, University of London.

They want to know why some beliefs take hold so strongly, what’s happening in our brains when we hold on to them, and how trust, identity, and community shape what we believe. Beyond that, they’ll explore why health beliefs can be so difficult to shift, and whether it’s ever really possible to change someone’s mind. From the psychology of delusions to the spread of everyday health narratives, this episode dives deeper into the mechanics of belief.

If you’d like to share your thoughts on this or any other topic covered on the podcast, you email us at whatsupdocs@bbc.co.uk or Whatsapp on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Professor Ryan McKay Producer: Maia Miller-Lewis Executive Producer: Rami Tzabar Editor: Jo Rowntree Researcher: Grace Revill Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4

Welcome to What’s Up Docs?, the podcast where doctors and identical twins Chris and Xand van Tulleken confront the confusion around every aspect of our health and wellbeing.

In this episode, they’re asking why beliefs about our bodies are so powerful? We often think of belief as something soft – just ideas in our heads. But beliefs can shape how we experience pain, how we heal, and even how societies behave. In health, they can influence whether treatments work and how symptoms are felt.

So what actually are beliefs? Why do we them, and how do they form? And can changing what we believe about our bodies actually change how we feel?

To help answer these questions, Chris and Xand are joined by Ryan McKay, Professor of Psychology at Royal Holloway, University of London, and an expert on the psychology of belief.

If you want to get in touch, you can email us at whatsupdocs@bbc.co.uk or WhatsApp us on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Professor Ryan McKay Producer: Maia Miller-Lewis Executive Producer: Rami Tzabar Editor: Jo Rowntree Researcher: Grace Revill Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4

Drs Chris and Xand continue their conversation about dry skin with Dr Tess McPherson, Associate Professor of Paediatric and Adolescent Dermatology at the University of Oxford.

The docs want to know what eczema is, why it happens, whether it is worth eliminating triggers and whether topical steroids are an effective treatment. They also explore the stigma around skin conditions and what we can all do to address it, and hear Dr McPherson’s personal and clinical perspective on dry skin and skincare in general.

If you’d like to share your thoughts on this or any other topic covered on the podcast, you email us at whatsupdocs@bbc.co.uk or Whatsapp on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Dr Tess McPherson Researcher: Mili Ostojic Producer: Faye Lyons White Assistant Producer: Maia Miller-Lewis Social Media Producer: Leon Gower Executive Producer: Rami Tzabar Editor:Jo Rowntree Tech Lead: Reuben Huxtable Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4.

Welcome to What’s Up Docs?, the podcast where doctors and identical twins Chris and Xand van Tulleken cut through the confusion around every aspect of our health and wellbeing.

In this episode, Chris and Xand dive into dry skin and how it can be relieved. Why does dry skin happen? How can your washing and cleansing routine affect your skin? Should you use moisturisers, and how do they work? Can you use too many products? They explore the biology of dry skin, whether it can be prevented, the trends surrounding the care of dry skin, and the science of moisturisers.

Joining them to discuss this is Dr Tess McPherson, Associate Professor of Paediatric and Adolescent Dermatology at the University of Oxford and consultant dermatologist at Oxford University Hospitals.

If you want to get in touch, you can email us at whatsupdocs@bbc.co.uk or WhatsApp us on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Dr Tess McPherson Researcher: Mili Ostojic Producer: Faye Lyons White Assistant Producer: Maia Miller-Lewis Social Media Producer: Leon Gower Executive Producer: Rami Tzabar Editor:Jo Rowntree Tech Lead: Reuben Huxtable Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4

Chris and Xand continue their conversation about body temperature with Dr Heather Massey, Associate Professor of extreme environments and physiology at the University of Portsmouth.

Drs Chris and Xand van Tulleken want to know how cold water swimming and contrast therapy can challenge your body temperature and what the benefits might be. They also explore whether everyone should be challenging their body temperature, and whether there are alternatives to the extreme methods. They also hear Dr Massey’s personal and clinical perspective on cold water swimming.

If you’d like to share your thoughts on this or any other topic covered on the podcast, you email us at whatsupdocs@bbc.co.uk or Whatsapp on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Dr Heather Massey Producer: Faye Lyons-White and Maia Miller-Lewis Executive Producer: Rami Tzabar Editor: Jo Rowntree Researcher: Mili Ostojic Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4.

Welcome to What’s Up Docs?, the podcast where doctors and identical twins Chris and Xand van Tulleken cut through the confusion around every aspect of our health and wellbeing.

In this episode, Chris and Xand dive into body temperature and how it can be challenged. How does the human body regulate its core and skin temperature? Can you change your body temperature from its average value? Should you challenge your body temperature by exposing yourself to hot environments? They explore the biology of body temperature, the impact of cold therapies and look at the claimed benefits of saunas.

Joining them to discuss this is Dr Heather Massey, Associate Professor of extreme environments and physiology at the University of Portsmouth.

If you want to get in touch, you can email us at whatsupdocs@bbc.co.uk or WhatsApp us on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Dr Heather Massey Researcher: Mili Ostojic Producers: Faye Lyons White and Maia Miller-Lewis Social Media Producer: Leon Gower Executive Producer: Rami Tzabar Editor: Jo Rowntree Tech Lead: Reuben Huxtable Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4

Drs Chris and Xand continue their conversation about all-or-nothing thinking with Kimberley Wilson, Chartered Psychologist, author and host of the new mental health podcast, Complex.

Chris and Xand want to know how all-or-nothing thinking interacts with out socio-politics, and how age and our relationship with social media shapes our tendency towards binary thought patterns.

If you’d like to share your thoughts on this or any other topic covered on the podcast, you email us at whatsupdocs@bbc.co.uk or Whatsapp on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Kimberley Wilson Producer: Maia Miller-Lewis Executive Producer: Rami Tzabar Editor: Jo Rowntree Researcher: Kimberley Wilson Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Ruth Rainey

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4.

Welcome to What’s Up Docs?, the podcast where doctors and identical twins Chris and Xand van Tulleken cut through the confusion around every aspect of our health and wellbeing.

In this episode, Chris and Xand dive into the concept of ‘all-or-nothing’ thinking. What does it really mean, and why are our brains drawn to this black-and-white way of seeing the world? They explore how it shows up in everyday life, whether it can ever be helpful, and share practical strategies for recognising and challenging it. They also reflect on their own experiences with this mindset.

Joining them to discuss this is Kimberley Wilson, Chartered Psychologist, author, and host of the new mental health podcast, Complex.

If you want to get in touch, you can email us at whatsupdocs@bbc.co.uk or WhatsApp us on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Kimberley Wilson Producer: Maia Miller-Lewis Executive Producer: JRami Tzabar Editor: Jo Rowntree Researcher: Grace Revill Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Ruth Rainey

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4

In a specially extended episode recorded in front of an audience at the BBC Radio Theatre in London, What's up Docs? explores the wonders of the human heart.

"The heart is more than just a pump—it's a marvel of engineering and history, and in this episode, we're pulling it apart to see how it all works!”

Join Drs Chris and Xand van Tulleken as they discover how reliable the human heart can be - beating on average a hundred thousand times a day - that's more than 2.5 billion beats in a lifetime!

The doctors are joined on stage by Sian Harding, Emeritus Professor of Cardiac Pharmacology at the National Heart and Lung Institute, Imperial College London. She is also author of The Exquisite Machine: the new science of the hear. Sian tells us that far from being fragile, the human heart is a marvel of engineering, in fact, to get a washing machine to perform as well as the heart, it would have to run a wash cycle continiously for a 1000 years!

Also taking part is Prof Stephen Westaby, one of the world's leading heart surgeons, whose pioneering procedures have made front page news around the world. Over the course of his career, he has performed over 11,000 heart operations and is renowned for his groundbreaking work in artificial heart technology.

Together they look back at the history of heart surgery, reveal some of the latest breakthroughs in heart science, including the future of artificial hearts, and discuss how you can best to look after your own heart.

If you want to get in touch, you can email us at whatsupdocs@bbc.co.uk or WhatsApp us on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guests Professor Sian Harding and Professor Stephen Westaby Producers: Maia Miller-Lewis Executive Producer: Rami Tzabar Editor: Jo Rowntree Researcher: Grace Revil Tech Lead: Reuben Huxtable Social Media Producer: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4.

In a special episode recorded in front of an audience at the BBC Radio Theatre in London, What's up Docs? explores the wonders of the human heart.

"The heart is more than just a pump- it's a marvel of engineering and history, and in this episode, we're pulling it apart to see how it all works!”

Join Drs Chris and Xand van Tulleken as they discover how reliable the human heart can be, beating on average a hundred thousand times a day - that's more than 2.5 billion beats in a lifetime!

The doctors are joined on stage by two guests - Sian Harding is Emeritus Professor of Cardiac Pharmacology at the National Heart and Lung Institute, Imperial College London. She is also author of the book “The Exquisite Machine: the new science of the heart”. Also taking part is Professor Stephen Westaby, one of the world's leading heart surgeons. Over the course of his career, he has performed over 11,000 heart operations and is renowned for his ground-breaking work in artificial heart technology.

Together they'll look back at the history of heart surgery, reveal some of the latest breakthroughs in heart science and surgery, including the future of artificial hearts, and discuss how best to look after your own heart.

If you want to get in touch, you can email us at whatsupdocs@bbc.co.uk or WhatsApp us on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guests Professor Sian Harding and Professor Stephen Westaby Producer: Maia Miller-Lewis Executive Producer: Rami Tzabar Editor: Jo Rowntree Researcher: Grace Revil Tech Lead: Reuben Huxtable Social Media Producer: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4

Chris and Xand continue their conversation about false memories with Dr Linda Henkel.

The Docs are digging into the different research studies and experiments that have been done around false memories. They also discuss the concept of repressed memories, and Xand shares some of his own, potentially false memories.

If you’d like to share your thoughts on this or any other topic covered on the podcast, you email us at whatsupdocs@bbc.co.uk or Whatsapp on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Dr Linda Henkel Producers: Maia Miller-Lewis and Jo Rowntree Executive Producer: Rami Tzabar Editor: Kirsten Lass Researcher: William Hornbrook Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Ruth Rainey

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4.

Welcome to What’s Up Docs?, the podcast where doctors and identical twins Chris and Xand van Tulleken untangle the confusion around every aspect of our health and wellbeing. In this episode, the Docs are returning to the topic of memory, delving into the concept of false memories. Chris and Xand are curious about how and why false memories form, whether there’s anything we can do to guard against them, and why they aren’t necessarily something we should worry about. They are joined once again by Dr Linda Henkel, Professor of Psychological and Brain Sciences at Fairfield University. If you want to get in touch, you can email us at whatsupdocs@bbc.co.uk or WhatsApp us on 08000 665 123. Presenters: Drs Chris and Xand van Tulleken Guest: Dr Linda Henkel Producers: Maia Miller-Lewis and Jo Rowntree Executive Producer: Rami Tzabar Editor: Kirsten Lass Researcher: William Hornbrook Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Ruth Rainey At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4

Chris and Xand continue their conversation about napping with Russell Foster, Professor of Circadian Neuroscience at the University of Oxford.

They want to know why some people drift off easily while others struggle to shut their eyes. Beyond that, they explore how our ability and even our desire to nap changes depending on our age, and how it differs across cultures and regions of the world. From siestas in Spain to power naps in Japan, and from toddlers who fight sleep to adults who crave it, we’ll explore what napping says about our bodies, our habits, and our society.

If you’d like to share your thoughts on this or any other topic covered on the podcast, you email us at whatsupdocs@bbc.co.uk or Whatsapp on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Professor Russell Foster Producer: Maia Miller-Lewis Executive Producer: Rami Tzabar and Jo Rowntree Editor: Kirsten Lass Researcher: Grace Revill Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Ruth Rainey

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4.

Welcome to What’s Up Docs?, the podcast where doctors and identical twins Chris and Xand van Tulleken tackle the confusion around every aspect of our health and wellbeing.

In this episode, they’re asking, what’s the deal with naps? Some people nod off in minutes, while others can’t manage it at all. So why is napping so different from person to person? Is it actually good for us? Is there a “right” way to nap - and should we all be making time for it? Also, they uncover what’s really happening inside the brain when we drift off.

To help answer these questions, they’re joined once again by Russell Foster, Professor of Circadian Neuroscience at the University of Oxford. If you want to get in touch, you can email us at whatsupdocs@bbc.co.uk or WhatsApp us on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Professor Russell Foster Producer: Maia Miller-Lewis Executive Producer: Rami Tzabar and Jo Rowntree Editor: Kirsten Lass Researcher: Grace Revill Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Ruth Rainey

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4

Chris and Xand continue their conversation about embarrassment with Dr Tiffany Watt Smith, a cultural historian interested in the histories of emotion and medicine.

They want to know: how power and hierarchical structures in your relationships affect your levels of embarrassment, and how embarrassment functions within the context of other emotions.

If you’d like to share your thoughts on this or any other topic covered on the podcast, you email us at whatsupdocs@bbc.co.uk or Whatsapp on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Dr Tiffany Watt Smith Producer: Maia Miller-Lewis and Jo Rowntree Executive Producer: Rami Tzabar Editor: Kirsten Lass Researcher: Grace Revill Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Ruth Rainey

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4.

Welcome to What’s Up Docs?, the podcast where doctors and identical twins Chris and Xand van Tulleken untangle the confusion around every aspect of our health and wellbeing.

In this episode, the Doctors turn their attention to the curious emotion of embarrassment - why do we feel embarrassed? They want to know how it links to blushing, how it differs from shame or guilt, and whether it might actually serve a useful, protective and even healthy role in our lives.

To get some answers, they speak with Dr Tiffany Watt Smith, a writer and cultural historian interested in the histories of emotion and medicine.

If you want to get in touch, you can email us at whatsupdocs@bbc.co.uk or WhatsApp us on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Dr Tiffany Watt Smith Producers: Maia Miller-Lewis and Jo Rowntree Executive Producer: Rami Tzabar Editor: Kirsten Lass Researcher: Grace Revill Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Ruth Rainey

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4

Chris and Xand continue their conversation about nature with Baroness Kathy Willis, Professor of Biodiversity at Oxford University.

They look a little deeper into the relationship between nature and our health and wellbeing. They also discuss Kathy's thoughts on how society interacts with nature. These insights go beyond the science to explore the bigger picture of our relationship with the natural world. Plus, they discuss what we can be doing to help the natural world in return for helping us.

If you’d like to share your thoughts on this or any other topic covered on the podcast, you email us at whatsupdocs@bbc.co.uk or Whatsapp on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Professor Kathy Willis Producers: Rami Tzabar and Maia Miller-Lewis Executive Producer: Jo Rowntree Editor: Kirsten Lass Researcher: Grace Revill Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4.

Welcome to What’s Up Docs?, the podcast where doctors and identical twins Chris and Xand van Tulleken tackle the confusion around every aspect of our health and wellbeing.

In this special episode, Chris and Xand are out of the studio and into the woods, exploring something a little different - the connection between nature and our health and wellbeing.

You’ve probably heard claims that just being in green spaces can boost your mood, help you recover from illness, and even lower your stress. But how much of that is really backed by science, and how much is just the latest wellness fad? To do this they are joined by Baroness Kathy Willis, Professor of Biodiversity at Oxford University.

If you want to get in touch, you can email whatsupdocs@bbc.co.uk or WhatsApp us on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Professor Kathy Willis Producers: Rami Tzabar and Maia Miller-Lewis Executive Producer: Jo Rowntree Editor: Kirsten Lass Researcher: Grace Revill Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4

Chris and Xand continue their conversation with Dr James Rucker, a consultant psychiatrist at King's College London who is leading the European arm of a global trial of a psychedelic designed to treat people with severe depression.

They discuss the history of psychedelics, the discovery of LSD and the popular (and often illegal) practice of microdosing. Is there any evidence to suggest that taking minute quantities of psychedelic substances will boost your brain function or mood?

Chris and Xand also discuss their own experience of taking psychedelics several years ago for a TV series about traditional medicines.

If you’d like to share your thoughts on this or any other topic covered on the podcast, you email us at whatsupdocs@bbc.co.uk or Whatsapp on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Professor Andy Smith Producer: Jo Rowntree Executive Producer: Rami Tzabar Editor: Kirsten Lass Assistant Producer: Maia Miller-Lewis Assistant Producer and Researcher: Emily Bird Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4.

Welcome to What’s Up Docs?, the podcast where doctors and identical twins Chris and Xand van Tulleken untangle the confusion around every aspect of our health and wellbeing.

This week, Chris and Xand meet Dr James Rucker, a consultant psychiatrist at King's College London who is leading the European arm of a global trial of a psychedelic called psilocybin in a study designed to treat people with severe depression for whom other pharmacological treatments have failed.

The use of psychedelics in both traditional medicinal and spiritual ceremonies dates back thousands of years and examples include peyote and ayahuasca from Central and South America, Iboga root from Central Africa and LSD, which is synthesised from a fungus found throughout Europe. As the number of clinical trials involving psychedelics increases, scientists are cautiously optimistic that they may be able to help with a range of conditions from eating disorders and anxiety to depression and addiction.

If you want to get in touch, you can email us at whatsupdocs@bbc.co.uk or WhatsApp us on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Dr James Rucker Producer: Jo Rowntree Executive Producer: Rami Tzabar Editor: Kirsten Lass Assistant Producer: Maia Miller-Lewis Assistant Producer and Researcher: Emily Bird Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4

Chris and Xand continue their conversation about fibre with Dr Deirdre Tobias, an obesity and nutritional epidemiologist at the Brigham and Women's Hospital and Harvard Medical School in Boston, USA.

Together, they dig further into the relationship between our fibre intake and our microbiome. Plus, they delve into some of the socioeconomic aspects of increasing our intake of fibre.

If you’d like to share your thoughts on this or any other topic covered on the podcast, you email us at whatsupdocs@bbc.co.uk or Whatsapp on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Dr Deirdre Tobias Producers: Maia Miller-Lewis and Jo Rowntree Executive Producer: Rami Tzabar Editor: Kirsten Lass Maia Miller-Lewis Researcher: Grace Revill Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Ruth Rainey

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4.

Welcome to What’s Up Docs?, the podcast where doctors and identical twins Chris and Xand van Tulleken clear up the confusion around every aspect of our health and wellbeing.

In this episode, they want to answer some of the most important questions about dietary fibre. What is it and why do our bodies need it? They’ll explore the best sources of fibre - both natural and processed - and unpack the growing trend of fibre-enriched foods. Also, they’ll discuss easy ways to add more fibre into our daily routines without overhauling our diets.

They speak to Dr Deirdre Tobias, an obesity and nutritional epidemiologist at the Brigham and Women's Hospital and Harvard Medical School in Boston, to find out.

If you want to get in touch, you can email us at whatsupdocs@bbc.co.uk or WhatsApp us on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Dr Deirdre Tobias Producers: Maia Miller-Lewis and Jo Rowntree Executive Producer: Rami Tzabar Editor: Kirsten Lass Maia Miller-Lewis Researcher: Grace Revill Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Ruth Rainey

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4

Drs Chris and Xand van Tulleken continue their conversation with Dr Mindy Cairns, Specialist Musculoskeletal Physiotherapist and Associate Professor at the University of Hertfordshire.

They discuss how mental health issues can contribute to back pain, what women can do to manage back pain during pregnancy, and the difficulties of living with long-term back pain alongside other medical conditions. Plus, are there any types of beds and chairs that are good for our backs?

If you’d like to share your thoughts on this or any other topic covered on the podcast, you email us at whatsupdocs@bbc.co.uk or Whatsapp on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Dr Mindy Cairns Producer: William Hornbrook Executive Producers: Rami Tzabar and Jo Rowntree Editor: Kirsten Lass Assistant Producer: Maia Miller-Lewis Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4.

Welcome to What’s Up Docs?, the podcast where doctors and identical twins Chris and Xand van Tulleken tackle the confusion around every aspect of our health and wellbeing.

On the agenda this week is back pain. It’s a condition that will affect around 80% of us at some point during our lives, with low back pain being the single leading cause of disability worldwide.

Joining Chris and Xand in the studio to discuss the science behind these statistics is Dr Mindy Cairns, Specialist Musculoskeletal Physiotherapist and Associate Professor at the University of Hertfordshire. She explains what causes back pain, how it can be managed and treated, and what we can do to protect our backs.

If you want to get in touch, you can email us at whatsupdocs@bbc.co.uk or WhatsApp us on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Dr Mindy Cairns Producer: William Hornbrook Executive Producers: Rami Tzabar and Jo Rowntree Editor: Kirsten Lass Assistant Producer: Maia Miller-Lewis Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4

Chris and Xand continue their conversation with Professor Stella Volpe, head of the department of Human Nutrition, Foods, and Exercise at Virginia Polytechnic Institute and State University in the United States.

They talk to Stella about her work as a sports nutritionist, specialising in diabetes and obesity, about whether athletes need to think about magnesium differently, and the relationship between magnesium and diabetes.

If you’d like to share your thoughts on this or any other topic covered on the podcast, you email us at whatsupdocs@bbc.co.uk or Whatsapp on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Professor Stella Volpe. Producer: Jo Rowntree and Emily Bird Executive Producer: Rami Tzabar Editor: Kirsten Lass Assistant Producer: Maia Miller-Lewis Researcher: Grace Revill Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4.

Welcome to What’s Up Docs?, the podcast where doctors and identical twins Chris and Xand van Tulleken cut through the confusion around health and wellbeing.

In this episode, the Doctors turn their attention to the mineral of the moment - magnesium. Hyped up on social media, Chris and Xand want to dig into the different roles magnesium plays in regulating the human body, what happens when we’re deficient in magnesium, and whether we should be supplementing magnesium.

To find out, Chris and Xand sit down with Professor Stella Volpe. Stella is the Head of the department of Nutrition, Food and Exercise at Virginia Tech in the US. Stella specialises in prevention of diabetes and obesity, as well as sports nutrition. Her research has included studies of the role of magnesium in the body.

If you want to get in touch, you can email us at whatsupdocs@bbc.co.uk or WhatsApp us on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Professor Stella Volpe Producer: Jo Rowntree and Emily Bird Executive Producer: Rami Tzabar Editor: Kirsten Lass Assistant Producer: Maia Miller-Lewis Researcher: Grace Revill Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4

Chris and Xand are back with a bonus episode, as they continue their conversation with Dr Chi Eziefula, Associate Professor in Global Health and Infection and menstrual health expert.

They talk about how menstrual health is covered in medical school, delve further into the stigma that still surrounds it, and what institutions are doing - or not doing - about it.

If you’d like to share your thoughts on this or any other topic covered on the podcast, you email us at whatsupdocs@bbc.co.uk or Whatsapp on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Dr Chi Eziefula Producers: Maia Miller-Lewis and Jo Rowntree Executive Producer: Rami Tzabar Editor: Kirsten Lass Researcher: Grace Revill Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Ruth Rainey

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4.

Welcome to What’s Up Docs?, the podcast where doctors and identical twins Chris and Xand van Tulleken cut through the confusion around health and wellbeing.

In this episode, the Doctors turn their attention to the menstrual cycle. Menstrual health and periods are still surrounded by myths, misunderstandings and stigma. So what are we getting wrong? They're interested in understanding what the menstrual cycle is, the benefits it provides, the stigma that surrounds it, and the issues associated with menstrual products.

To find out, Chris and Xand sit down with Dr Chi Eziefula, Associate Professor in Global Health and Infection at Brighton and Sussex Medical School and an Honorary Consultant Physician. Her research focuses on menstruation and how it’s relevant to human rights and environmental sustainability, as well as to our health.

If you want to get in touch, you can email us at whatsupdocs@bbc.co.uk or WhatsApp us on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Dr Chi Eziefula Producers: Maia Miller-Lewis and Jo Rowntree Executive Producer: Rami Tzabar Editor: Kirsten Lass Researcher: Grace Revill Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Ruth Rainey

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4

Sshhh! Drs Chris and Xand van Tulleken are back to hear more about noise in this episode of Doctors’ Notes. Continuing their conversation with Charlotte Clark, Professor of Environmental Epidemiology at City St George’s, University of London, they dig deeper into the science around environmental noise and its damaging effects on our health and wellbeing. Charlotte tells Chris and Xand about her research exploring the effects of noise on children’s learning and development, as well a current project to assess the impact of night flights.

If you’d like to share your thoughts on this or any other topic covered on the podcast, you email us at whatsupdocs@bbc.co.uk or Whatsapp on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Professor Charlotte Clark Producers: William Hornbrook and Jo Rowntree Executive Producer: Rami Tzabar Editor: Kirsten Lass Assistant Producer: Maia Miller-Lewis Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4.

Welcome to What’s Up Docs?, the podcast where doctors and identical twins Chris and Xand van Tulleken cut through the noise around every aspect of our health and wellbeing.

This week, Chris and Xand speak to Professor Charlotte Clark, Environmental Epidemiologist at City St George’s, University of London. She explains how being exposed to transport noise over long periods of our life can have disastrous consequences for our cardiovascular systems, brains and minds. But how big a problem is this? And is there anything we can do to protect ourselves from the effects of noise?

If you want to get in touch, you can email us at whatsupdocs@bbc.co.uk or WhatsApp us on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Professor Charlotte Clark Producers: William Hornbrook and Jo Rowntree Executive Producer: Rami Tzabar Editor: Kirsten Lass Assistant Producer: Maia Miller-Lewis Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts A Loftus Media production for BBC Radio 4

Urine for a treat in this week’s Doctors’ Notes, as Drs Chris and Xand van Tulleken continue their fascinating conversation with Dr Kate Bramham, Consultant Nephrologist at King’s College Hospital and Reader at King's College London.

In this bonus episode, the Docs delve into the issue of chronic kidney disease and why some communities are disproportionately affected by it. They also explore the effectiveness of kidney transplants and hear how kidney function differs between men and women.

If you’d like to share your thoughts on this or any other topic covered on the podcast, you email us at whatsupdocs@bbc.co.uk or Whatsapp on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Dr Kate Bramham Producers: William Hornbrook and Jo Rowntree Executive Producer: Rami Tzabar Editor: Kirsten Lass Assistant Producer: Maia Miller-Lewis Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4.

Welcome to What’s Up Docs?, the podcast where doctors and identical twins Chris and Xand van Tulleken tackle the confusion around every aspect of our health and wellbeing.

Chris and Xand have always found the kidneys somewhat mysterious and elusive, going all the way back to medical school. Now they want to understand what makes this pair of organs so complex, and why they are so much more than simple filters. How do the kidneys work? What can happen when they go wrong? And how can we keep them healthy for as long as possible?

To answer these questions and more, the Docs are joined by Dr Kate Bramham, Consultant Nephrologist at King’s College Hospital and Reader at King's College London.

If you want to get in touch, you can email us at whatsupdocs@bbc.co.uk or WhatsApp us on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Dr Kate Bramham Producers: William Hornbrook and Jo Rowntree Executive Producer: Rami Tzabar Editor: Kirsten Lass Assistant Producer: Maia Miller-Lewis Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4

Chris and Xand continue their discussion with Dr Yusur Al-Nuaimi, Consultant Dermatologist at the Royal Devon and Exeter Hospital and Clinical Lead for the British Hair and Nail Society. They dive deeper into the science of nails and the vital clues they can provide about a plethora of serious health conditions. Plus, Yusur tells Chris and Xand about what first piqued her interest in dermatology, and the research she has carried out in this field.

If you’d like to share your thoughts on this or any other topic covered on the podcast, you email us at whatsupdocs@bbc.co.uk or Whatsapp on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Dr Yusur Al-Nuaimi Producers: William Hornbrook and Jo Rowntree Executive Producer: Rami Tzabar Editor: Kirsten Lass Assistant Producer: Maia Miller-Lewis Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4.

Welcome to What’s Up Docs?, the podcast where doctors and identical twins Chris and Xand van Tulleken tackle the confusion around every aspect of our health and wellbeing.

This week, Chris and Xand are exploring the topic of nail health. As well as being useful tools on our hands and feet, nails can also be important signs of many diseases and disorders. But what exactly is a nail made of? How did nails evolve? And what should we be doing to keep them strong and healthy?

They speak to Dr Yusur Al-Nuaimi, Consultant Dermatologist at the Royal Devon and Exeter Hospital and Clinical Lead for the British Hair and Nail Society, to get some answers.

If you want to get in touch, you can email us at whatsupdocs@bbc.co.uk or WhatsApp us on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Dr Yusur Al-Nuaimi Producers: William Hornbrook and Jo Rowntree Executive Producer: Rami Tzabar Editor: Kirsten Lass Assistant Producer: Maia Miller-Lewis Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4

Chris and Xand continue their conversation with Professor Sophie Scott CBE, a leading expert in the neuroscience of laughter from University College London. They explore what sets real laughter apart from fake, how children pick up the habit of laughing, and whether faking a laugh can make you feel better. Plus, they ask Sophie how she first became interested in laughter research.

If you’d like to share your thoughts on this or any other topic covered on the podcast, you email us at whatsupdocs@bbc.co.uk or Whatsapp on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Professor Sophie Scott Producer: Jo Rowntree Executive Producer: Rami Tzabar Editor: Kirsten Lass Assistant Producer: Maia Miller-Lewis Researcher: Grace Revill Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4.

Welcome to What’s Up Docs?, the podcast where doctors and identical twins Chris and Xand van Tulleken cut through the confusion around health and wellbeing.

In this episode, the Doctors turn their attention to laughter. You’ve probably heard the phrase 'laughter is the best medicine', but have you ever wondered if there’s actually any science behind that? Can a good belly laugh really help with stress, pain, or even your immune system? How does it help to improve our relationships? And why do we laugh at all - even when nothing’s particularly funny?

To find out, Chris and Xand sit down with Professor Sophie Scott CBE, a leading expert in the neuroscience of laughter from University College London.

If you want to get in touch, you can email us at whatsupdocs@bbc.co.uk or WhatsApp us on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Professor Sophie Scott Producer: Jo Rowntree Executive Producer: Rami Tzabar Editor: Kirsten Lass Assistant Producer: Maia Miller-Lewis Researcher: Grace Revill Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts A Loftus Media production for BBC Radio 4

In this episode, Chris and Xand continue to explore the power of saying 'no', this time focussing on defiance in parenting and childhood. They’re joined by behavioural scientist and physician Dr Sunita Sah from Cornell Univeristy.

If you want to get in touch, you can email us at whatsupdocs@bbc.co.uk or WhatsApp us on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Dr Sunita Sah Producer: Emily Bird Executive Producers: Rami Tzabar and Jo Rowntree Editor: Kirsten Lass Assistant Producer: Maia Miller-Lewis Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4.

Why is it so hard to say no? Whether it’s at work, with family, or in everyday social situations, many of us find ourselves saying yes when we really want to say no, then paying the price later in stress, burnout, or resentment.

In this programme, the doctors explore the psychology behind our reluctance to turn things down, and how we can become more comfortable protecting our boundaries.

They’re joined by behavioural scientist and physician Dr Sunita Sah from Cornell University , whose research reveals how social pressure, guilt, and even professionalism can get in the way of a simple two-letter word. Together, they explore why we struggle to say no, and offer practical strategies to help us do it more often, and with confidence.

If you want to get in touch, you can email us at whatsupdocs@bbc.co.uk or WhatsApp us on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Dr Sunita Sah Producer: Emily Bird Executive Producers: Rami Tzabar and Jo Rowntree Editor: Kirsten Lass Assistant Producer: Maia Miller-Lewis Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4

Chris and Xand take an extra caffeine shot as they continue their conversation with Professor Andy Smith, an Occupational and Health Psychologist at Cardiff University. Can caffeine really boost sports performance and if so, by how much? Why is caffeine so dangerous when mixed with alcohol? And what were the 'caffeine wars'?

If you’d like to share your thoughts on this or any other topic covered on the podcast, you email us at whatsupdocs@bbc.co.uk or Whatsapp on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Professor Andy Smith Producer: Jo Rowntree Executive Producer: Rami Tzabar Editor: Kirsten Lass Assistant Producer: Maia Miller-Lewis Assistant Producer and Researcher: William Hornbrook Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts A Loftus Media production for BBC Radio 4.

Welcome to What’s Up Docs?, the podcast where doctors and identical twins Chris and Xand van Tulleken untangle the confusion around every aspect of our health and wellbeing.

This week, Chris thinks he has seen a hack to optimise his caffeine intake, but will it stack up? To find out if there is any evidence behind Chris’ theory, the Docs have a stimulating conversation with Andy Smith, Professor of Occupational and Health Psychology at Cardiff University, who has been studying the effects of caffeine for over 30 years. They discuss what caffeine does to the brain, why some of us can handle more of it than others, and whether consuming it is a safe way to enhance both our cognitive and physical performance.

If you want to get in touch, you can email us at whatsupdocs@bbc.co.uk or WhatsApp us on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Professor Andy Smith Producer: Jo Rowntree Executive Producer: Rami Tzabar Editor: Kirsten Lass Assistant Producer: Maia Miller-Lewis Assistant Producer and Researcher: William Hornbrook Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts A Loftus Media production for BBC Radio 4

Chris and Xand continue their conversation about tanning with Dr Rachel Abbott, Consultant Dermatologist at the University Hospital of Wales in Cardiff. They discuss the role of skin tone in tanning and also why it is that some people burn more than others. They also discuss the cultural perception of tanning and what it means for our health and habits.

If you’d like to share your thoughts on this or any other topic covered on the podcast, you email us at whatsupdocs@bbc.co.uk or Whatsapp on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Dr Rachel Abbott Producers: Jo Rowntree and Maia Miller-Lewis Executive Producer: Rami Tzabar Editor: Kirsten Lass Researcher: Grace Revill Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4.

Welcome to What’s Up Docs?, the podcast where doctors and identical twins Chris and Xand van Tulleken clear up the confusion around every aspect of our health and wellbeing.

In this episode, the Doctors turn their attention to tanning. As sun-lovers themselves, Chris and Xand know there’s a lot of confusion surrounding how to tan safely - if that’s even possible.

In today’s episode they’re weighing up the pros and cons of being in direct sunshine. Can you ever tan safely? What happens when we burn? And most importantly, how can we enjoy sunny days without putting our skin at risk? To get some straight answers, they speak with Dr Rachel Abbott, Consultant Dermatologist at the University Hospital of Wales in Cardiff.

If you want to get in touch, you can email us at whatsupdocs@bbc.co.uk or WhatsApp us on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: Dr Rachel Abbott Producers: Jo Rowntree and Maia Miller-Lewis Executive Producer: Rami Tzabar Editor: Kirsten Lass Researcher: Grace Revill Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Melvin Rickarby

At the BBC:

Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts A Loftus Media production for BBC Radio 4

Welcome to What’s Up Docs?, the podcast where doctors and identical twins Chris and Xand van Tulleken explore core issues around every aspect of our health and wellbeing.

In today’s episode, the Doctors explore core strength. When most people think of a “strong core”, they picture sculpted six-pack abs - but there’s much more beneath the surface. Chris and Xand will unpack the real meaning of core strength - what it is, why it matters, and how it's different from simply having visible abs.

They speak to physiotherapist James Moore to find out why core strength is essential not just for athletic performance, but for everyday stability, posture, injury prevention, and long-term health, and break down what we should be doing to build a truly strong and functional core - no matter your fitness level.

If you want to get in touch, you can email us at whatsupdocs@bbc.co.uk or WhatsApp us on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken Guest: James Moore Producer: Jo Rowntree Executive Producer: Rami Tzabar Editor: Kirsten Lass Assistant Producer: Maia Miller-Lewis Researcher: Grace Revill Tech Lead: Reuben Huxtable Social Media: Leon Gower Digital Lead: Richard Berry Composer: Phoebe McFarlane Sound Design: Ruth Rainey

At the BBC: Assistant Commissioner: Greg Smith Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4