What's Up Docs?

Drs Chris and Xand van Tulleken continue their conversation about relaxation with philosopher and author Julian Baggani. They look at the history of relaxation, the activities we have chosen to do in order to switch off and how that has changed over the years. They also look at whether relaxation has become commodified and what that might mean for our ability to do it successfully. If you’d like to share your thoughts on this or any other topic covered on the podcast, please email us at [email protected] . Presenters: Drs Chris and Xand van Tulleken Guest: Dr Julian Baggani Producer: Claire Justin and Faye Lyons-White Executive Producers: Jo Rowntree and Rami Tzabar Researcher: Claire Justin Executive Producer: Rami Tzabar Visual Producer: Leon Gower Technical Lead: Reuben Huxtable 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 explore the ideas shaping our health and wellbeing. In this episode, they look at relaxation. We are all aware that relaxation has an importance in our lives, when things get too much we book holidays and time off work. But what does it actually mean to relax and are the activities we chose actually allowing us to escape our stresses? To help answer these questions, they’re joined by philosopher and journalist Dr Julian Baggini. If you want to get in touch, you can email us at [email protected] or WhatsApp us on 08000 665 123. Presenters: Drs Chris and Xand van Tulleken Guest: Dr Julian Baggini Producers: Claire Justin and Faye Lyons-White Executive Producers: Jo Rowntree and Rami Tzabar Researcher: Claire Justin Executive Producer: Rami Tzabar Visual Producer: Leon Gower Technical 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 van Tulleken continue their conversation about hydration with Dr John Whittle, a consultant in anaesthesia, critical care and perioperative medicine at University College Hospitals and an honorary associate professor at University College London. Most of the time our bodies are brilliant at regulating fluid but what happens when that process gets disrupted by illness, stress or ageing? And crucially, what can we do about it? If you’d like to share your thoughts on this or any other topic covered on the podcast, you email us at [email protected] . Presenters: Drs Chris and Xand van Tulleken Producer and researcher: Dr Samara Linton Executive Producers: Rami Tzabar Editor: Jo Rowntree Visual Producer: Leon Gower Technical 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 explore the ideas shaping our health and wellbeing. In this episode they’re exploring hydration. We’ve all heard we should be drinking eight glasses of water a day, but does it hold up? Chris and Xand look at what water actually does in the body and how we regulate fluid. They also separate fact from fiction on the hydration beliefs and trends that are everywhere right now. Does drinking more water actually help you lose weight? What about the online trend of loading water with supplements and flavourings to maximise its benefits? Should we all be adding electrolytes to our water? To help answer these questions, they’re joined by Dr John Whittle. He’s a consultant in anaesthesia, critical care and perioperative medicine at University College Hospitals and an honorary associate professor at University College London. If you want to get in touch, you can email us at [email protected] . Presenters: Drs Chris and Xand van Tulleken Producer and researcher: Dr Samara Linton Executive Producers: Rami Tzabar Editor: Jo Rowntree Visual Producer: Leon Gower Technical 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 van Tulleken continue their conversation with Professor Sunita Sah about why humans follow advice they suspect, or even know, is bad. They explore what first drew Sunita to this area of research, alongside her own experiences of following advice she knew she should probably question. Together, they unpack the psychology behind why rejecting advice can feel so uncomfortable, and why intelligence or expertise doesn’t necessarily protect people from poor decisions. If you’d like to share your thoughts on this or any other topic covered on the podcast, please email us at [email protected] . Presenters: Drs Chris and Xand van Tulleken Guest: Professor Sunita Sah Producer: Maia Miller-Lewis Executive Producer: Rami Tzabar Editor: Jo Rowntree Researcher: Grace Revill Tech Lead: Reuben Huxtable Social Media: Leon Gower Visual Producer: 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 explore the ideas shaping our health and wellbeing. In this episode, they discuss a behaviour almost everyone recognises - following advice we suspect is bad, or even know is wrong. So why do we do it? From medicine and wellness culture to friendships and everyday life, Chris and Xand unpack the psychology behind why bad advice can be so hard to resist. They consider how authority, confidence and social pressure shape our decisions, and why warning signs don’t always protect us from making choices we later regret. They also ask why questioning experts can feel so difficult, even when our wellbeing depends on it. Along the way, they discuss how people can become more confident questioning advice, seeking second opinions, and making decisions that genuinely align with their own judgement and wellbeing. To help them untangle it all, they’re joined by Professor Sunita Sah, Organisational psychologist at Cornell University. If you want to get in touch, you can email us at [email protected] . Presenters: Drs Chris and Xand van Tulleken Guest: Professor Sunita Sah 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 eyes with Mr Raj Das-Bhaumik. The doctors want to know what particular things we should be doing to look after our eyes in the summer, including how to protect them while swimming or spending time outdoors. They're also curious about dry eye, a common condition that could affect over half of the UK population, and how to manage it, as well as other eye conditions like glaucoma and cataracts and how they are particularly affected in the summer months. If you’d like to share your thoughts on this or any other topic covered on the podcast, you email us at [email protected] . Presenters: Drs Chris and Xand van Tulleken Guest: Mr Raj Das-Bhaumik Producer: Dr Samara Linton Executive Producer: Rami Tzabar Researcher: Mili Ostojic Tech Lead: Reuben Huxtable Visual Producer: 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 identical twin doctors Chris and Xand van Tulleken cut through the confusion around every aspect of our health and wellbeing. In this episode, Chris and Xand van Tulleken discuss eyes and how to check and protect them. From finding a proper pair of sunglasses to mythbusting common beliefs about eyes, the twins explore the intricacies of an organ that can often be overlooked, especially if you’ve never needed glasses. To help navigate the maze of online advice, Chris and Xand are joined by Mr Raj Das-Bhaumik, a consultant ophthalmic and oculoplastic surgeon at Moorfields Eye Hospital, one of the world's leading eye hospitals. Together, they break down what everyone needs to look out for when it comes to their eyes. Presenters: Drs Chris and Xand van Tulleken Guest: Mr Raj Das-Bhaumik Producer: Dr Samara Linton Executive Producer: Rami Tzabar Researcher: Mili Ostojic Tech Lead: Reuben Huxtable Visual Producer: 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 AI medicine with Dr Emma Karoune. The docs explore how AI has been used in cutting edge medical research, such as to create digital models of the heart to enable instant alerts to a doctor. They want to know about AI for pattern recognition and how this can be used in determining changes in scans or predicting pandemic. They also want to know more about how ambient AI can be useful to doctors and how data science enables the development of AI technologies. If you’d like to share your thoughts on this or any other topic covered on the podcast, you email us at [email protected] . Presenters: Drs Chris and Xand van Tulleken Guest: Dr Emma Karoune Producer: Rami Tzabar Executive Producer: Jo Rowntree Assistant Producer: Mili Ostojic Tech Lead: Reuben Huxtable Visual Producer: 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 identical twin doctors Chris and Xand van Tulleken cut through the confusion around every aspect of our health and wellbeing. Can AI empower better self-care and clinical practice, or is it just more health noise? Most of us have fallen down a search engine rabbit hole only to emerge more confused about our symptoms than when we started. But as we enter the era of Large Language Models (LLMs) like ChatGPT, Claude, and Gemini, the landscape of medical information is shifting. In this episode, Chris and Xand van Tulleken debate whether these AI chatbots, with their vast medical knowledge and surprisingly good "bedside manner", are a breakthrough for patient clarity or a new frontier for misinformation. From asking a chatbot about a "creaky knee" to AI’s burgeoning role in analysing scans, the twins explore a technology that is already transforming GP surgeries and laboratories alike. While there is plenty to be cautiously excited about, big questions remain. Can we truly trust AI-generated advice? When is it helpful, and when is it dangerous? To help navigate this rapidly evolving space, Chris and Xand are joined by Dr Emma Karoune, Principal Investigator of the Clinical AI Interest Group and Advancing Biomedical Data Science Careers project at The Alan Turing Institute. Together, they break down what patients and practitioners need to look out for in the age of AI medicine. If you’d like to share your thoughts on this or any other topic covered on the podcast, you email us at [email protected] . Presenters: Drs Chris and Xand van Tulleken Guest: Dr Emma Karoune Producer: Rami Tzabar Executive Producer: Jo Rowntree Assistant Producer: Mili Ostojic Tech Lead: Reuben Huxtable Visual Producer: 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

In this extended episode of What's Up Docs?, Chris and Xand van Tulleken continue their conversation with Professor Robin Condliffe. Together, they explore how our understanding of the lungs has evolved over time, from early theories about breathing to the breakthroughs that transformed modern respiratory medicine. They also examine why lung health is shaped by more than biology alone. From air pollution and housing quality to poverty and access to healthcare, they discuss the social and environmental factors that continue to influence who develops lung disease and who receives treatment. Recording at Crossed Wires Festival in Sheffield, they reflect on the city's industrial heritage and the lessons it offers for modern public health. They also ask what has changed in respiratory medicine during Robin's career, and how his work has influenced the way he thinks about his own health and wellbeing. If you’d like to share your thoughts on this or any other topic covered on the podcast, you can email us at [email protected] . Presenters: Drs Chris and Xand van Tulleken Guest: Professor Robin Condliffe Producer: Maia Miller-Lewis Editor: Jo Rowntree Executive Producer: Rami Tzabar Researcher: Grace Revill Production Manager: Lisa Lipman 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 the ideas shaping our health and wellbeing. In this episode, recorded live at Crossed Wires Festival in Sheffield, they are joined by Professor Robin Condliffe, Consultant Respiratory Physician at Royal Hallamshire Hospital. Together, they explore the extraordinary science of the lungs: how they work, how they keep us alive, and what happens when they start to go wrong. From asthma, COPD and lung cancer to air pollution, smoking and respiratory infections, they discuss some of the biggest challenges facing lung health today. Along the way, they examine the links between lung health, deprivation and the environment, reflect on Sheffield's industrial heritage, and explore the latest advances in respiratory medicine. Finally, they ask what we can all do to keep our lungs healthier for longer. If you want to get in touch, you can email us at [email protected] . Presenters: Drs Chris and Xand van Tulleken Guest: Professor Robin Condliffe Producer: Maia Miller-Lewis Editor: Jo Rowntree Executive Producer: Rami Tzabar Researcher: Grace Revill Production Manager: Lisa Lipman 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 van Tulleken take a deeper dive into heart palpitations and the rise of wearable technology. With devices like smartwatches now able to detect irregular heart rhythms, more people are being alerted to potential problems, often without any symptoms. But is this early detection saving lives, or creating new challenges? Joined again by Consultant Cardiologist Dr Pranev Sharma, the docs explore how wearables actually work, how accurate they are, and what happens when they flag something abnormal. They unpack the balance between prevention and overdiagnosis, and ask whether we risk medicalising normal bodily sensations. They also look at how decisions are made about treatment, and whether these decisions are changing as more cases are detected through technology. If you’d like to share your thoughts on this or any other topic covered on the podcast, you email us at [email protected] or Whatsapp on 08000 665 123. Presenters: Drs Chris and Xand van Tulleken Guest: Dr Pranev Sharma Producer: Maia Miller-Lewis Executive Producer: Rami Tzabar Editor: Kirsten Lass Researcher: Grace Revill Tech Lead: Reuben Huxtable Visual Producer : 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 explore the ideas shaping our health and wellbeing. In this episode, they turn their attention to heart palpitations. That sudden flutter, skipped beat or racing heart can feel alarming, but what’s actually going on, and when should you be concerned? They break down what palpitations are, what causes them, and what’s happening in the heart when you feel them. From everyday triggers like stress and caffeine to more serious rhythm problems, they explore the full spectrum, from completely normal to potentially dangerous. They also look at how doctors investigate palpitations, the warning signs not to ignore, and what to do if you’re worried. To help them unpack it all, they’re joined by Dr Pranev Sharma, Consultant Cardiologist at Midland Metropolitan Hospital in Birmingham. If you want to get in touch, you can email us at [email protected] or WhatsApp us on 08000 665 123. Presenters: Drs Chris and Xand van Tulleken Guest: Dr Pranev Sharma 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 body odour with Matthew Cobb, Professor Emeritus of Zoology at the University of Manchester. They explore whether it’s possible to predict how someone experiences an odour based on their DNA, and how our sense of smell compares to that of other animals. Many people lost their sense of smell during the Covid-19 pandemic, bringing greater awareness to just how central this sense is to our everyday lives. They discuss the role that smelling ourselves and each other plays in everyday life, what happens when that sense is lost, and what support is available for those experiencing anosmia. If you’d like to share your thoughts on this or any other topic covered on the podcast, you email us at [email protected] or Whatsapp on 08000 665 123. Presenters: Drs Chris and Xand van Tulleken Guest: Professor Matthew Cobb Producer: Jo Rowntree Assistant Producer: Dr Samara Linton Researcher: Dr Samara Linton Executive Producer: Rami Tzabar Visual Producer: Leon Gower Technical 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 explore the ideas shaping our health and wellbeing. In this episode, they explore something that affects every one of us - body odour. Body odour plays a significant role in our emotional and social lives, and even in our health. Chris and Xand explore what body odour actually is, where it comes from, and why it varies so much from person to person. They also examine the many ways we try to mask our natural scent and separate fact from fiction when it comes to what our body odour can tell us about each other and our health. To help unpack it all, they’re joined by Matthew Cobb, Professor Emeritus of Zoology at the University of Manchester, whose research explores how smell evolved and how animals use it to navigate and communicate. If you want to get in touch, you can email us at [email protected] or WhatsApp us on 08000 665 123. Presenters: Drs Chris and Xand van Tulleken Guest: Professor Matthew Cobb Producer: Jo Rowntree Assistant Producer: Dr Samara Linton Researcher: Dr Samara Linton Executive Producer: Rami Tzabar Visual Producer: Leon Gower Technical 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

This extended episode of What's Up Docs? features Chris and Xand van Tulleken's full live conversation with Professor Devi Sridhar at Hay Festival. Going deeper than the main episode, they explore the tension between individual responsibility and structural change, and why asking "how do I stay healthy?" might be the wrong question altogether. Devi draws on her work across governments and health systems worldwide to examine what genuinely moves the needle on population health. Chris and Xand also ask how Devi's work shapes the way she lives, and what single policy change she'd make tomorrow if she could. If you’d like to share your thoughts on this or any other topic covered on the podcast, you can email us at [email protected] . Presenters: Drs Chris and Xand van Tulleken Guest: Professor Devi Sridhar Producer: Maia Miller-Lewis Executive Producer: Rami Tzabar Editor: Jo Rowntree Researcher: Grace Revill Tech Lead: Reuben Huxtable Video 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 explore the ideas shaping our health and wellbeing. In this episode, recorded live at Hay Festival, they're joined by Professor Devi Sridhar, Chair of Global Public Health at the University of Edinburgh, to ask how we can live longer, healthier lives. They dig into the difference between life expectancy and healthy life expectancy, and why the latter is falling in places like the UK. Devi unpacks the biggest factors that shape how well we age, from diet and exercise to mental health and the environments we live in, and shares what decades of working across countries and health systems has taught her. They challenge the idea that health is simply a matter of individual choice, exploring how the society you're born into can shape your chances of a long and healthy life more than any supplement or wellness hack. If you want to get in touch, you can email us at [email protected] or WhatsApp us on 08000 665 123. Presenters: Drs Chris and Xand van Tulleken Guest: Professor Devi Sridhar Producer: Maia Miller-Lewis Executive Producer: Rami Tzabar Editor: Jo Rowntree Researcher: Grace Revill Tech Lead: Reuben Huxtable Video 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 van Tulleken continue their conversation about friendship with Dr Tiffany Watt Smith, writer and culture historian. Tiffany became interested in researching friendships after a moment of crisis in her own friendships. Together, Chris, Xand and Tiffany discuss the difference between male and female friendships and how that has changed over time. They explore the idea that we are living through a friendship recession and what that means for our social connections. And they look at digital friendships and their importance. If you’d like to share your thoughts on this or any other topic covered on the podcast, you email us at [email protected] or Whatsapp on 08000 665 123. Presenters: Drs Chris and Xand van Tulleken Guest: Dr Tiffany Watt Smith Producer: Faye Lyons-White Executive Producer: Rami Tzabar Editor: Jo Rowntree Researcher: Faye Lyons-White Tech Lead: Reuben Huxtable Visual Producer: 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 identical twin doctors Chris and Xand van Tulleken cut through the confusion around every aspect of our health and wellbeing. In this episode, the Docs take a look at the impact our friendships have on our physical health. Why different friendship styles are important and how we can maintain and nurture our social connections. Joining them is 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 [email protected] or WhatsApp us on 08000 665 123. Presenters: Drs Chris and Xand van Tulleken Guest: Tiffany Watt Smith Producer and researcher: Faye Lyons-White Executive Producer: Rami Tzabar 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 van Tulleken take a deeper dive into male contraception with Professor Richard Anderson. They explore why, despite decades of research, new male contraceptive options are still limited. From funding gaps to shifting attitudes, they unpack the social and scientific barriers that have shaped progress so far. They also look at how people feel about the idea of male contraception, whether those attitudes are changing, and what it could mean for relationships if new options become available. Along the way, they tackle common misconceptions and consider what the future of shared contraceptive responsibility might look like. If you’d like to share your thoughts on this or any other topic covered on the podcast, you email us at [email protected] or Whatsapp on 08000 665 123. Presenters: Drs Chris and Xand van Tulleken Guest: Professor Richard Anderson 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: 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 the ideas shaping our health and wellbeing. In this episode, they turn their attention to male contraception. We’ve been hearing about a “male pill” for decades, so why don’t we have one yet? They break down how male fertility works, what options currently exist, and the different approaches scientists are exploring, from hormonal gels to non-hormonal treatments. They also look at the challenges behind developing new contraceptives, from the biology to the strict safety standards and lack of funding that have slowed progress. To help them unpack it all, they’re joined by Professor Richard Anderson, Professor of Clinical Reproductive Science at the University of Edinburgh. If you want to get in touch, you can email us at [email protected] or WhatsApp us on 08000 665 123. Presenters: Drs Chris and Xand van Tulleken Guest: Professor Richard Anderson 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: 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 the lymphatic system with Professor Kristiana Gordon, a Consultant in Dermatology and Lymphovascular Medicine. The docs ask about the growing field of lymphoedema research and how our understanding of the lymphatic system has developed in recent years. They also explore primary lymphoedema, a condition caused by genetic errors that can affect children and young people, and ask what advances in understanding its underlying causes might mean for the development of new treatments. If you’d like to share your thoughts on this or any other topic covered on the podcast, you email us at [email protected] or Whatsapp on 08000 665 123. Presenters: Drs Chris and Xand van Tulleken Guest: Professor Kristiana Gordon Producer: Claire Justin Executive Producer: Rami Tzabar Researcher: Samara Linton Tech Lead: Reuben Huxtable Visual Producer: 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 identical twin doctors 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 lymphatic system, from its vital everyday functions supporting fluid balance and immunity to its more mysterious roles. They look at what happens when things go wrong, examine popular wellness claims around draining and detoxing our lymphatic system, and find out what actually supports good lymphatic health. Joining them to discuss this is Professor Kristiana Gordon, a Consultant in Dermatology and Lymphovascular Medicine. She’s Clinical Lead at the National Lymphoedema Clinic at City St George's, University of London, and is also a certified lymphoedema therapist. If you want to get in touch, you can email us at [email protected] or WhatsApp us on 08000 665 123. Presenters: Drs Chris and Xand van Tulleken Guest: Professor Kristiana Gordon Producer: Claire Justin Executive Producer: Rami Tzabar Researcher: Samara Linton Tech Lead: Reuben Huxtable Visual Producer: 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

In this Doctors' Notes episode of What’s Up Docs?, Chris and Xand van Tulleken take a deeper dive into hay fever with Professor Stephen Till. The docs and their guest explore whether hay fever is really becoming more common, and if so, why. From climate change and air pollution to changes in our environment and biodiversity, they unpack the factors that may be making symptoms worse. They also look at how hay fever varies around the world, including why treatments like allergy injections are more widely used in some countries than others. Along the way, they tackle common myths and share practical advice for managing hay fever more effectively. If you’d like to share your thoughts on this or any other topic covered on the podcast, you email us at [email protected] or Whatsapp on 08000 665 123. Presenters: Drs Chris and Xand van Tulleken 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.