Health Check

Some people are injecting a fraction of the standard dose of weight loss drugs and hoping to still receive the benefits, but many are doing so without any medical oversight and there could be risks. Makers of the drugs say they don't condone people modifying how they use their products. Health journalist Katie Silver speaks to Claudia Hammond about why some people are choosing to microdose these weight loss drugs. With wildfires spreading across Western Europe, North Africa and Canada, Claudia is joined by BBC Health Reporter Laura Foster to discuss recent studies into the impacts wildfires can have on our health. Claudia and Laura also talk about new research into fertility and pregnancy loss as well as asking, are we consuming too much protein? And it is increasingly clear that multiple sclerosis (MS) is linked to Epstein-Barr virus infections, but can we use that knowledge to stop the progression of MS? Claudia speaks with Michael Levy, associate professor at Harvard Medical School and neuroimmunologist at the Massachusetts General Hospital, to understand if viral treatments could halt this disease and why this common virus can cause such severe immune responses in a few individuals. Presenter: Claudia Hammond Producers: Jonathan Blackwell & Georgia Christie(Photo:- Hand on belly on gray background - stock photo- Credit: seb_ra via Getty Images)

Road accidents are a leading cause of death and injury around the world, and in 2020, the UN General Assembly set a target to reduce road deaths by 50% by 2030. Claudia Hammond is joined by BBC Health reporter Philippa Roxby to look at new research which explores how road injury trends have changed globally over the past three decades, and discuss what these trends mean for public health and safety.India is facing shortages of important chemotherapy drugs as the price of the precious metal platinum has soared. Journalist Chhavi Sachdev reports on the situation from Mumbai.The prediction market platform Kalshi has announced that they will now be allowing users to place bets on the outcomes of clinical trials and FDA approvals. Claudia speaks with Nikola Biller-Andorno, Professor of Biomedical Ethics at the University of Zurich, to understand what this could mean for clinical research going forward.Also what is really happening to the body when it goes to space? New research suggests our cells react to microgravity in surprising ways. And how introducing fish to rice fields in Senegal could halt the spread of the neglected tropical disease, schistosomiasis.Presenter: Claudia Hammond Producers: Georgia Christie and Jonathan Blackwell

Last week, the US Defence Secretary announced a new policy that will require US military personnel to undergo annual screening for testosterone deficiency, however some health experts have expressed concerns that this program could have negative effects. Claudia Hammond speaks with Gary Wittert, professor of medicine at Adelaide University and consultant endocrinologist at the Royal Adelaide Hospital, to understand more about testosterone and what hormone replacement therapy can do to the body. Many babies receive a vitamin K shot after birth to prevent internal bleeding, but recently more parents are declining this potentially life-saving treatment. Dr Matthew Fox, Professor of Epidemiology and Global Health at Boston University, joins Claudia to explain what is driving this trend, and the evidence behind the jab.Professor Rebecca Katz from Georgetown University in Washington DC and Director of the Health Security Operations Center has been monitoring disease spread and public health risks during the Men's Football World Cup, and joins Claudia to share what went well and what we have learned through this monitoring process.A microscopic parasite, cyclosporiasis, is causing a gastrointestinal outbreak in the United States – Matthew and Claudia discuss the possible sources and what is being done to combat it. And, how El Salvador eliminated trachoma – the world's leading infectious cause of blindness.Presenter: Claudia Hammond Producers: Jonathan Blackwell and Georgia Christie

Organisations providing HIV services to gay men have had to close in Niger after a ban on same sex acts. Gay men there fear coming forward to be tested or treated and have lost access to condoms and medication protecting against HIV. Claudia Hammond and health journalist Camilla Mota discuss what this might mean for HIV rates in the country.We also hear about a US study looking at whether cancer screening rates differ across sexual orientation and gender identity, and discuss the return of a crisis hotline which aims to prevent suicide in LGBTQ+ in the US which had been closed a year ago.And little is known about how screen time impacts recovery after a concussion. Claudia speaks with Professor Ginger Yang from the Center for Injury, Research and Policy at the Nationwide Children's Hospital in the United States about her new research which found that for teens, the relationship may be more complicated than we thought.Then reporter Sen Nguyen takes us to Bangkok, where an intrepid group of cyclists are looking to change the city's road culture, and we hear how changes like these could fit into Thailand's proposed Clean Air Bill.And finally, we hear about how the smell of chocolate could help us to train harder in the gym.Presenter: Claudia Hammond Producers: Jonathan Blackwell and Georgia Christie

On June 24th, twin earthquakes hit Venezuela, and in the weeks since the healthcare system has been overwhelmed with need. Claudia Hammond speaks with International Red Cross representative Paolo Cravero to learn more about the latest health updates on the ground in Caracas, and what is being done to fill the growing gaps in care.Claudia is joined by Graham Easton, Professor of Clinical Communication Skills at Queen Mary University of London, who brings us the latest on a Swedish study which suggests a prostate cancer blood test could detect 50 percent more cases, helping significantly reduce needless treatments. Graham and Claudia also discuss the growing threat of fungal infections and antifungal resistance - the WHO has released a “blueprint” to help countries respond - whilst the USA has published a surveillance report noting the doubling of Candida auris cases between 2022 and 2024 in the country, one of the fungal pathogens the WHO is most concerned about.Also, while rates of obesity and overweight have continued to rise globally over the last 30 years, a new study has found that the associated cardiac risks of high blood pressure and cholesterol have instead plateaued. Claudia speaks with Paul Franks, professor of genetic epidemiology at Lund University in Sweden, and of translational precision medicine at Queen Mary University, to understand what this trend really means.And could the parasites carried by feral and stray cats in New York City cause disease in humans? Presenter: Claudia Hammond Producers: Georgia Christie & Jonathan BlackwellImage: A general view of a camp where people visit for health aid after the earthquakes that struck Venezuela and other regions in the Caribbean, on July 1, 2026 in La Guaira, Venezuela Image Credit: Edilzon Gamez/Getty Images

Two Ebola drugs are due to be trialled in the Democratic Republic of Congo (DRC) as cases of the disease continue to rise in the country. BBC health and science correspondent James Gallagher joins Claudia Hammond to discuss the new clinical trial, and to update on the latest from the outbreak in the DRC and Uganda.Claudia also visits The Royal Society's annual Summer Science Exhibition in London to explore a range of new health research on display.We hear about how salt water is being used to try to make lateral flow tests more sensitive and targeted, with Guido Bolognesi and Nguyen Thi Kim Thanh from University College London. They also explain the role gold nanoparticles play in current lateral flow tests, which rapidly diagnose pregnancy or Covid-19.Claudia also visits a 'microbe zoo' and speaks with Revathy Krishnamurthy from the Quadram Institute of Bioscience in Norwich, England, who explains what phages are, and how they can be harnessed to improve food safety.Finally, we meet Pat Price, visiting professor at Imperial College London, to learn about the high-energy particles that could kill cancer cells, how they could completely change treatment for patients, and how it's hoped lasers can help them accomplish it.Image Credit: Credit: Photo by DIEUDONNE DIROLE/EPA/ShutterstockPresenter: Claudia Hammond Producer: Dan Welsh and Georgia Christie

Many people with infertility use in vitro fertilisation (IVF), however the probability of having a baby following IVF is only approximately 30-40% per cycle and decreases significantly with age. It can be a lengthy and expensive process. Providers sometimes offer ‘add-ons', additional treatments that they claim could help patients conceive, which are themselves also usually expensive. In Australia, New Zealand and the United Kingdom more than 70% of patients pay for at least one of these add-ons. A new review published in The Lancet Obstetrics, Gynaecology, & Women's Health journal has found that evidence on the benefits of these add-on treatments is unclear. Claudia Hammond speaks to Dr Sarah Lensen, Senior Research Fellow in the Department of Obstetrics, Gynaecology and Newborn Health at the University of Melbourne.Joining Claudia from Ghana is genito-urinary consultant and HIV expert, Vanessa Apea. Claudia and Vanessa discuss a draft African Charter on Family, Sovereignty and Values, which claims that comprehensive sex education, as well as a range of sexual and reproductive health rights, are a threat to African families from foreign ideologies.They also discuss a report from the Office of Inspector General of US Agency for International Development (USAID) which reveals that President Donald Trump's administration has spent hundreds of thousands of dollars in storage and transportation costs for $9.7 million worth of contraceptives that are being stored in Belgium rather than distributed to the various low-income countries they were intended for. Many of the withheld contraceptives are now expired or unusable due to their removal from temperature-controlled storage.We also hear from Health Check reporter Jane Chambers in the Chilean city of Valdivia, where wetlands are part of everyday life—and increasingly, part of people's health. And we hear how faecal-microbiome transplants could improve the efficacy of some antidepressants in patients with major depressive disorder.Presenter: Claudia Hammond Producers: Jonathan Blackwell & Georgia Christie

The WHO has conducted their first global assessment of food contamination in over a decade and found that more than 1.5 million people are killed by food poisoning every year. Dr Ann Robinson joins Claudia Hammond to discuss the common causes of foodborne illness.Gout is a type of inflammatory arthritis which can cause sudden and severe joint pain. Claudia is joined by Professor Nicola Dalbeth an academic rheumatologist at the University of Auckland in New Zealand to discuss misconceptions about the disease.Reporter Tony Vinyoh then brings us to Cameroon, where Mbingo Baptist hospital is creating its own compressed oxygen supply to address the shortages and high costs of life-saving medical interventions.We also discuss a new wearable ultrasound patch which could detect pregnancy complications in real-time, and we hear about a weekly 5 kilometre run in a park which has grown to become a global phenomenon - with over one million events across 5 continents and 23 countries - promoting regular exercise and well-being.Presenter: Claudia Hammond Producers: Jonathan Blackwell and Georgia Christie

How does reading shape our mind and spirit? Why do novels make us feel more human? In front of a live audience at the Hay Festival of Literature & Arts in Wales in the UK, Claudia Hammond looks at the science of what reading does to the mind and explores the profound impact it can have on our lives and well-being.She is joined on stage by award-winning novelist and travel writer Joanna Kavenna; Dr Paula Byrne, Jane Austen biographer, writer and co-founder of ReLit: The Bibliotherapy Foundation and Ben Alderson-Day, Professor in Psychology at Durham University and lead researcher on ReaderBank, an ongoing research project studying reading, imagination and wellbeing.With these leading experts in psychology and the literary world, she examines the range of imaginative experiences that fiction readers have, whether novels can deepen our capacity for empathy and the therapeutic effect of reading on our minds.Presenter: Claudia Hammond Producer: Helena Selby

From heat exhaustion to dengue fever - monitoring public health risks at the biggest tournament in football history. With millions of fans travelling to the USA, Canada and Mexico for the men's football World Cup, Claudia Hammond speaks to Professor Rebecca Katz from Georgetown University in Washington DC who is the Director of the newly set up Health Security Operations Center, a surveillance hub to track threats to health, monitoring the risk of diseases such as measles, dengue and chikungunya.With the World Cup coinciding with rainy season in Mexico, which also means mosquito season, our reporter Rogelio Navarro in Guadalajara brings us the latest on efforts in Jalisco state to prevent outbreaks of dengue which is transmitted by mosquitoes.And the potential for health issues due to extreme heat has caused concerns amongst players, spectators and scientists. At the men's FIFA Club World Cup in the USA last year Chelsea and Argentina midfielder Enzo Fernandez spoke out about the difficulties of playing in high temperatures. We hear from Norwegian international midfielder Morten Thorsby and Douglas Casa, CEO of the Korey Stringer Institute and Professor of Kinesiology at the University of Connecticut, who have written to tournament organisers, FIFA, calling for stronger heat protection measures for players and spectators.Presenter: Claudia Hammond Producer: Jonathan BlackwellImage: Aziz Behich and Mathew Leckie of Australia drink water during the FIFA World Cup Qatar 2022 Group D match between Australia and Denmark at Al Janoub Stadium on November 30, 2022 in Al Wakrah, Qatar

Three months into the blockage of the Strait of Hormuz, we find out about the 20,000 sailors trapped on board with dwindling resources and minimal health provision. We hear from Mohamed Arrachedi, Network Co-ordinator for the Arab World and Iran for the International Transport Workers' Federation, and Helen Sampson, Emeritus Professor in the School of Social Sciences at Cardiff University.News from the World Health Assembly where WHO member countries come together for form health policy for the year ahead. Global Health journalist Andrew Green reports.Lots of us love a video game, but for a few the games can start to take over their lives, and the impact of a gaming disorder can be very serious – especially for children. Our reporter Kate Ferguson reports from a specialist clinic in Western Australia to find out how they have been tackling the issue One in four surveyed doctors thought preservation was likely to work in the future, but how might we be preserved and why would we want to be? We unpack the reality of what's possible now and what might be next.Presenter: Claudia Hammond Producer: Hannah Robins, Clare Salisbury, Researcher: Scarlett VictoriaThis programme was edited on 29/05/2026

An Ebola outbreak that started in the north-east of the Democratic Republic of Congo (DRC) is spreading in the region and has been declared a health emergency. Health Check's Claudia Hammond has the latest with BBC reporter Emery Makumeno in Kinshasa, Heather Kerr, Country Director for the International Rescue Committee (IRC) in the DRC, and Professor Trudie Lang, head of the Global Health Network at Oxford University. Claudia is joined in the studio by BBC health reporter Laura Foster. They discuss the call for more testing of drugs with under-represented groups, after a study of Black African Americans, smokers, and people with complex health conditions in the US showed that an asthma drug, Tezepelumab, led to 70% fewer asthma attacks in people with severe asthma.They also hear about new hearing technology which can read peoples' brainwaves to help people to pick out the single voice they want to listen to in a noisy room. Claudia speaks to Nima Mesgarani, Associate Professor at the Zuckerman Institute at Columbia University in New York.And Claudia and Laura discuss why some cancer patients would fancy a pre-consultation with an AI avatar before a consultation with their real-life doctor? Presenter: Claudia Hammond Producer: Jonathan Blackwell & Clare SalisburyImage: A Congolese health worker checks the temperature to screen a traveller at the Grande Barrier border following confirmation of an Ebola outbreak involving the Bundibugyo strain, at the border crossing point between Congo and Rwanda, in Goma, Democratic Republic of Congo May 18, 2026

Global health reporter Dorcas Wangira joins Claudia Hammond to discuss how renaming a common health condition affecting millions of women worldwide hopes to improve understanding, treatment and diagnoses. Polycystic ovary syndrome (PCOS) has been renamed polyendocrine metabolic ovarian syndrome (PMOS).Dorcas also brings Claudia Hammond news of a controversial AI algorithm being used by the Kenyan Government to work out how much people should be charged for healthcare costs. We hear from Peru where researchers have been mapping pesticide use and cases of people getting cancer in a major new study. And from the USA where a study on our disease-fighting T cells shows that they become more effective after we've eaten a meal.Presenter: Claudia Hammond Producer: Hannah Robins, Georgia Christie and Jonathan Blackwell

We bring you the latest on the hantavirus outbreak on the cruise liner MV Hondius with BBC health reporter Smitha Mundasad.Endometriosis, where cells similar to the lining of the womb grow elsewhere in the body, can take up to a decade to get diagnosed despite leaving some women in debilitating pain. A new scanning technique hoping to speed up that diagnosis. Dr Tatjana Gibbons, from Oxford University, who developed the test, explains how it works.We unpack how the way operations are schedules affects patient outcomes with transplants. How electricity is improving treatment for patients with a heart rhythm disorder. Professor Oussama Wazni explains how it works.And how seven rings can translate sign language into text.Presenter: Claudia Hammond Producer: Hannah Robins & Georgia Christie

The American Food and Drug Administration (FDA) has just awarded fast track status to three companies developing psychedelic drugs as a treatment for addiction and other mental health issues. It comes after President Trump directed $50million dollars to increase their availability. Claudia Hammond is joined by BBC Brazil reporter Camilla Mota to discuss what claims are made for the effectiveness of these drugs.A novel house design, called “Star Homes”, which promote airflow, block insects, and feature rainwater collection systems, can reduce child mortality, demonstrated by a randomised controlled trial in Tanzania. We hear from Professor Lorenz Von Seidlein from the Mahidol-Oxford Tropical Medicine Research Unit in Bangkok about what makes these homes effective in lowering rates of malaria, diarrhoea and acute respiratory infections.We hear that the Russian health minister has called for 1 in 3 Russians to be tested for HIV annually. Russia has long had high rates of HIV, but it now has the highest prevalence in Europe, with particularly high rates among Russian troops since the beginning of the Ukraine war.We also hear from David Méary, associate professor at the Université Grenoble Alpes, about whether infants have a sense of beauty. And Claudia and Camilla discuss habits that drive salt consumption in older people.Presenter: Claudia Hammond Producer: Hannah Robins and Jonathan Blackwell

We learn about a new injectable microgel to help reduce bleeding in infants who require surgical care. In a mice model, it reduced bleeding by at least 50%. Ashley Brown, Professor of Biomedical Engineering at North Carolina State University and UNC Chapel Hill tells presenter Claudia Hammond more about this new material her team has designed.Joined by Professor of Global Health and Epidemiology at Boston University in the US, Dr Matthew Fox, Claudia hears about a mystery illness that is being investigated by health officials in Burundi, which has caused five deaths and sickened thirty-five people. So far lab analysis of the illness - which causes fever, vomiting, and diarrhoea - has been negative for Ebola and Marburg viruses, Rift Valley fever, and others.We hear about influential analysis from Cochrane which has concluded that "breakthrough" Alzheimer's drugs are unlikely to benefit patients. Researchers said the impact was "well below" what was needed to make a difference to dementia patients' lives. However, their report has also provoked a vicious backlash from equally esteemed scientists who label it as fundamentally flawed.We're joined by health journalist Katie Silver in Mexico, who brings us the news that the President, Claudia Sheinbaum, has announced the details of a plan to introduce universal healthcare – no mean feat in country of 130 million people.And we hear about an experiment that was done by academics to see if they could trick AI chatbots into believing in an entirely fake disease. Presenter: Claudia Hammond Producer: Jonathan Blackwell

A minority of patients requiring blood transfusions are increasingly requesting ‘unvaccinated' blood in the United States, per a new report published in the journal Transfusion. Our studio guest today, genito-urinary consultant Vanessa Apea, explains how this can lead to potentially dangerous delays and higher risks.Presenter Claudia Hammond speaks to Dr Angela Wu, from the Centre for Evidence-Based Medicine and Oxford Tobacco Addiction Group at the University of Oxford, about a new overview of the best available evidence worldwide for smoking cessation. The study, published in the journal Addiction, has found that nicotine‑containing e‑cigarettes appear to be more effective for stopping people smoking than other interventions.We hear how metabolic liver disease could affect nearly 1.8 billion people by 2050, according to new research published in The Lancet Gastroenterology & Hepatology journal. The growing number of cases means that many people are at risk of developing serious complications, however, the study also found that although more people are developing the disease, the overall impact on health has remained stable due to advances in treatment and care.We also hear from BBC World Service reporter Sen Nguyen in Vietnam as Hanoi plans to pilot a new low-emission zone from July to tackle air pollution. We hear what the proposed changes are and with the prevalence of diesel motorbikes in the city, how prepared are residents, workers and businesses for this change?And Claudia and Vanessa discuss whether living with friends may quietly be altering your gut bacteria, following new research published in the journal Molecular Ecology.Presenter: Claudia Hammond Producer: Jonathan Blackwell and Hannah Robins

As the Artemis II crew return to Earth, we uncover the health benefits of the feeling of awe with world-renowned expert, Dacher Keltner. We also discuss how we might find more awe in our everyday lives.What impact is the Iran war having on global health? Journalist Andrew Green unpicks the ramifications of shipping restrictions, ‘black rain' in Tehran and hacking attacks on medical suppliers.How two boyhood friends have helped developed a new kind of prosthesis with a programme based in Guadalajara. Our reporter Rogelio Navarro has the story.Progress on our understanding of Noma, a severe gangrenous disease of the mouth and face. Plus, how some blind people are using echolocation to help them detect objects in their environment.Presenter: Claudia Hammond Producer: Hannah Robins and Jonathan BlackwellImage: NASA astronaut and Artemis II Commander Reid Wiseman peers out of one of the Orion spacecraft's main cabin windows, looking back at Earth, as the crew travels towards the Moon April 2, 2026. NASA/Handout via REUTERS.

In Australia last year, it was discovered that hardly any sunscreen products actually offered the protection listed on the bottle. Now the Australian regulator has finally proposed sweeping reforms in the country known to be a skin cancer hotspot. Dr Michelle Wong, chemist and science communicator of LabMuffin Beauty Science explains what impact the changes might make.Northern Cyprus is one of the cheapest places to get IVF treatment. However, a British couple have recently discovered their children, conceived at a clinic in the country, are not biologically related despite the couple requesting the same sperm donor for both children. We find out more about what happened and how IVF clinics are regulated globally.How mosquitoes could be used to vaccinate bats against rabies and nipah, and the potential benefit to human health.In Ghana, Pakistan, Rwanda, and South Africa more than half of patients with serious injuries failed to reach medical care within an hour of being injured according to new research. Dr Leila Ghalichi, Senior Researcher at Department of Applied Health Sciences at the University of Birmingham explains what could be done to improve the situation.And, how sperm behaves in space, and what that means for colonising other planets.Presenter: Claudia Hammond Producer: Hannah Robins Assistant Producer: Jonathan Blackwell

For the last few weeks, the news has been dominated by the situation in the Middle East. Joining Claudia Hammond is BBC Health Correspondent James Gallagher who speaks with Dr Antoine Abou Fayad, a microbiologist and medicinal chemist based in Beirut, Lebanon. He reveals that war, just like the ongoing conflict in the Middle East, provides the perfect storm to accelerate the spread of multidrug-resistant infections. And nobody is safe.Following the recent meningitis B outbreak in the UK which has killed two people and led to the rollout of vaccines and preventative antibiotics, Claudia and James discuss how meningitis outbreaks are dealt with in the ‘meningitis belt' - an area stretching across 26 sub-Saharan African countries and talk about a new vaccine aiming to stop deadly meningitis epidemics which has been confirmed to be safe following analysis of vaccination campaigns in Nigeria and Niger.And India's snakebite crisis is killing near sixty thousand people every year, about six people every hour. Journalist Chhavi Sachdev joins us to discuss the progress of India's National Action Plan to tackle snakebite envenoming which launched two years ago. Also, what time of day do you exercise? Well, a new study using Fitbit-derived heart rate data has found that people who regularly exercised early in the morning were significantly less likely to have coronary artery disease, high blood pressure, Type 2 diabetes or obesity compared with people who exercised later in the day.Presenter: Claudia Hammond Producer: Jonathan Blackwell

North Korean defectors and lifelong South Korean residents have significantly different cancer rates, despite their genetic similarities; new research finds. Presenter Laura Foster unpacks this study, explaining what it tells us about how upbringing and environment contribute to different cancer rates, and how migration can change these risks.A new study has found GLP-1s – drugs typically used to treat diabetes and obesity – could have an unexpected benefit for patients dealing with substance abuse disorders. Laura speaks with Ziyad Al-Aly, a clinical epidemiologist and Veterans Affairs physician at Washington University in St Louis to understand what this could mean for treating drug and alcohol addictions, and what questions still need answers before this treatment can be rolled out.Last weekend, Kenya's National Environment Management Authority rolled out new waste management rules to better dispose of products containing plastic, but the new laws are expected to increase the price of sanitary pads by 20%. Global health reporter based in Nairobi, Dorcas Wangira joins Laura to unpack what these policies mean for the accessibility of sanitary products, and what alternative solutions are needed to balance access with environmental impact. They also discuss how a drug to treat Parkinson's disease can be made from waste plastic bottles using a pioneering method.And Jane Chambers reports from Peru about the growing prevalence of anaemia, speaking to local healthcare workers about what steps families can be taken to help their children recover.Presenter: Laura Foster Producers: Jonathan Blackwell and Georgia Christie

New research from Yale shows that aging doesn't have to result in mental and physical decline. In fact, they found that nearly half of older adults actually improved in cognitive or physical ability over a 12-year period. Dr Graham Easton, a family doctor, discusses what this can teach us about what we can and can't control when it comes to aging.Brain tumours can be notoriously difficult to treat because many therapeutic drugs are not allowed through the blood-brain barrier – an extremely selective system that controls access in and out of the brain. Now, researchers at the University of Southern California have shown that laser-induced tumour heating can open blood-brain barrier, improving the effectiveness of immunotherapy in brain cancer.Erica Benke reports from Finland, where the Winter Swimming World Cup is underway, looking at why winter swimming is growing in popularity and what researchers say about its real health effects and risks. A once‑rare form of organ donation is now transforming transplant care in the U.S and other countries, offering hope to thousands on waiting lists. These new techniques are allowing doctors to keep organs in good condition for longer, even after the donor's heart has stopped beating. Plus, researchers in Hungary are training AI to better identify mosquitos by their sound, with hopes to accurately monitor populations of the deadliest animal on Earth. Presenter: Laura Foster Producer: Anna Charalambou Assistant Producer: Georgia Christie

Collagen supplements have become increasingly popular over recent years. However, a new review has revealed that although taking collagen may rejuvenate the skin, it won't stop you from getting wrinkles. Dr Ann Robinson, a family doctor, discusses findings on what collagen is actually doing for your skin. The world is short of nearly a million midwives, a new report in Women and Birth warns. Daniela Drandić, the Head of Advocacy & Communications at the International Confederation of Midwives, is one of the authors of the study and breaks down the reason for this shortage and what could be done to increase numbers. Plus, we hear from Sarah Namyalo, a midwife in Uganda, who is doing her best to serve her community under difficult working conditions. A protein derived from a tick could lead to new therapies for conditions such as MS and certain cancers. Known as ‘evasins', these proteins produced by parasites such as ticks block the inflammatory response and could prevent the immune system from overreacting and develop certain diseases. Gout is a common type of inflammatory arthritis that causes joint pain and swelling but often goes untreated. Journalist Tony Vinyoh was recently diagnosed and treated for gout, and reports on how the disease is managed and perceived in Cameroon. Plus, scientists have developed the first ever fart measuring underwear, revealing that we break wind almost double the amount previously estimated. Presenter: Laura Foster Producer: Hannah Robins Assistant Producers: Georgia Christie and Anna Charalambou

A universal nasal spray vaccine that could block nearly all viruses, and possibly also bacteria and allergens has been successful at early stages of research. By leaving immune cells ‘on alert', they become ready to jump into action no matter what infection tries to get into the body. Dr Matthew Fox, Professor in the Departments of Epidemiology and Global Health at Boston University, explains what this could mean for the future of disease prevention.Four years into the Ukraine war, the founder of global initiative ‘Think Equal' Leslee Udwin explains the programmes currently in place to help children to grow through their traumatic experiences. Plus, a teacher in Kharkiv, Violetta Kaleda, as well as some of the children within the programmes, describe the impact of bringing social and emotional learning into education. Prevention campaigns are resuming after the cholera outbreak in Mozambique has now been declared an epidemic by the country's national director of public health. Reporter Jose Tembe give the latest on the outbreak after the years-long shortage of cholera vaccines begins to rebound.As commercial spaceflight grows and human fertility in space becomes a more pressing concern, embryologist Giles Palmer explains the current understanding of the effects of spaceflight on human reproductive systems. Plus, a new study on ultra-endurance marathon running shows it may accelerate aging and the breakdown of red blood cells. Presenter: Laura Foster Producer: Hannah Robins Assistant Producers: Georgia Christie and Anna Charalambou

How a patient survived for 48 hours without lungs. Too ill to receive a lung transplant straight away, the man relied on an artificial lung while his body recovered from an infection. As he prepares to repeat the procedure for the first time, Dr Ankit Bharat, Chief of Thoracic Surgery at Northwestern University's Feinberg School of Medicine explains the groundbreaking technique. Radiotherapy for abdominal cancers can severely damage the uterus and ovaries, causing infertility. However, a team have developed a technique where the uterus is moved out of harm's way during treatment, and now the first baby has been born to a recipient in Europe. Our studio guest today, genito-urinary consultant Vanessa Apea, explains how it worked and what it might mean for patients. Measles cases are on the rise in many parts of the world with more and more countries losing their elimination status. Rogelio Navarro reports on a particularly significant outbreak in Guadalajara, Jalisco State in Mexico.Condom use is in decline in Ghana. Will a government intervention on Valentine's Day make any difference? Plus, a new map for deadly scorpions' habitat – would you know what to do if you were stung?Presenter: Laura Foster Producer: Hannah Robins Assistant Producers: Jonathan Blackwell, Georgia Christie, Anna Charalambou

Statins are one of the most prescribed drugs in the world as they are highly effective at reducing “bad” LDL cholesterol that causes cardiovascular disease. A new review in the Lancet has found there are far fewer side effects associated with their use than previously thought. New Nipah cases have been reported in India and Bangladesh. Trudie Lang Professor of Global Health Research at the University of Oxford explains the significance and how worried we should be.A team in Cardiff, Wales have designed a reusable sanitary pad that cleans in sunlight. As a trial of the product begins in Nepal, we find out what the participants think of the idea and how it works.What does air pollution do to our bodies? James Gallagher reports. Plus, does pink noise actually help us sleep?Presenter: Laura Foster Producer: Hannah Robins Assistant Producers: Jonathan Blackwell, Anna Charalambou

Many of us can empathise with that feeling of keeping stuff for years and years. We might keep treasured objects with real sentimental value, or we might have items for a long time - and yet we can't really explain why. For those of us who don't like getting rid of our belongings, life can feel very full of stuff. But when does a tendency to hold on to things become more worrying? It can be difficult to put a figure on just how many people have what's known as hoarding disorder. So what causes this complex and little discussed issue – and is it more than just a problem of too much stuff? Claudia visits a woman who describes how hoarding has taken over her life to the extent that she doesn't let anyone into her home. We also meet her psychologist to understand what underpins hoarding disorder and how it's treated. And joining us in the studio is Catherine Loveday, Professor of Cognitive Neuroscience at the University of Westminster to look at whether our state of mind when we get vaccinated affects how well the vaccine works. They also discuss why the menopause might be bad for the brain whereas grandparenting might be good for the brain. Presenter: Claudia Hammond Producer: Jonathan Blackwell & Gerry Holt

For some communities in South Africa coming-of-age initiations are a hugely significant moment, but there have been rising concerns over the safety of the circumcisions at the heart of this ritual. Forty-eight young men died last year and the government are now introducing measures to tackle the issue. BBC's southern Africa correspondent Pumza Fihlani reports on the latest.Research suggests our hair does not grow by pushing up and out but by being pulled by a coordinated network of moving cells. Our studio guest Graham Easton, professor of clinical communication skills and former family doctor discusses the significance. What is the best way to encourage more people to give blood? New research from China evaluates system where donors were offered incentives such as free access to public bus services. Professor of Health Psychology Eamonn Ferguson puts this in the context of different approaches used worldwide. And should doctors use emojis in communications with patients? A new paper analyses how many are used and which ones by clinicians and patients in Michigan, USA. We discuss the pros and cons of their use.Presenter: Claudia Hammond Producer: Hannah Robins Assistant producer: Jonathan Blackwell Researcher: Anna Charalambou

Joined by BBC Brazil reporter Camilla Mota, presenter Claudia Hammond discusses new research from the U.S. that has found that people who have had a vaccine against shingles seem to be aging more slowly.We hear from James Tibenderana, Chief Executive of Malaria Consortium about research from Brazil that shows that as deforestation expands, mosquitoes are increasingly using humans as a blood source instead of wildlife. What does this mean for the spread of mosquito-borne diseases?Plus, why does Brazil have a particularly high number of supercentenarians? And could swearing make you stronger?Presenter: Claudia Hammond Producer: Hannah Robins Assistant Producers: Jonathan Blackwell and Anna Charalambou

We are often told exercise is good for boosting your mood, but a new Cochrane review has looked at what the evidence says about how much difference exercise can really make when treating depression.Many patients with chronic conditions fail to take medications as prescribed. We discuss a novel pill casing that can send a signal once it has been broken down in the stomach. Prof Giovanni Traverso, gastroenterologist and director of the Laboratory for Translational Engineering at MIT, explains how it works.A year on from the USAID freeze, global health journalist Andrew Green unpicks America's radically different influence on world health today. In Malawi's townships, many families can no longer afford charcoal or gas. Instead, they turn to burning plastic waste as cooking fuel. This keeps food on the table but fills kitchens and markets with toxic smoke, contributing to respiratory illness, pregnancy complications, and environmental damage. We hear from our reporter, Carrim Mpaweni.And we look at auto-brewery syndrome as researchers search for why some people's gut microbes produce high alcohol levels.Presenter: Claudia Hammond Producer: Hannah Robins Assistant producers: Jonathan Blackwell and Anna Charalambou

China has just brought in taxes on contraception including condoms in a bid to increase the nation's birth rate. What impact could this have when considered alongside other “fertility-friendly” policies? Global Health reporter Dorcas Wangira gives her verdict.Could RSV vaccination dramatically reduce childhood asthma? Professor Bart Lambrecht from Ghent University shares his latest research suggesting just that. How school-based vaccination programmes for HPV may provide cancer protection through herd immunity. Plus, BBC reporter Erika Benke takes us to a Finnish sauna to understand what we do, and don't know about the impact the ancient practice has on our health and wellbeing. Presenter: Claudia Hammond Producer: Hannah Robins Assistant Producer: Katie Tomsett

In the past decade there has been little progress in lowering malaria cases, with over half a million people still dying from the mosquito-borne disease every year. We look at the big ideas and innovations of the future that could help us eliminate malaria once and for all. What would happen if we got rid of the insect responsible for spreading the malaria parasite? Claudia heads to Imperial College London where she is joined by Dr Federica Bernardini and their 120 colonies of mosquitos to find out how revolutionary genetic technologies are aiming to do just that.Picking up on Imperial's work in the field is Principal Investigator at Target Malaria in Uganda, Dr Jonathan Kayondo. His job is to understand what it would mean to release these modified mosquitos into the wild.Looking at the existing tools that need levelling up is Dr Rob Moon, from the London School of Hygiene & Tropical Medicine, and Dr James Tibenderana, Chief Executive at the Malaria Consortium. Alongside Claudia they look at the next generation of vaccines and the importance of accessible rapid diagnostic tests.But is all this going to be enough to eliminate malaria? Presenter: Claudia Hammond Producer: Katie Tomsett

Malaria is still the third biggest killer on the planet and despite decades of serious investment it's a disease that is still very much with us. But that investment is starting to pay off - 2025 has been a big year for new ways of tackling the disease.This week we're reflecting on the progress made in 2025 – but also asking what impact unprecedented cuts to global health funding might have on whether children living in hot and humid regions of the world contract malaria. Our expert guide is James Tibenderana, an epidemiologist from Uganda. He is Chief Executive at the Malaria Consortium, an organisation that advises governments on best practice for tackling malaria as well as delivering their own programmes. We also hear from Nigeria, the country with the highest rates of malaria in the world. Dr Onyinye Echedike-Elekwa at The University of Port Harcourt Teaching Hospital on the south coast of the country tells us how it's been in the clinic this year. The drug known as GamLun marks a huge breakthrough in the treatment of malaria. Abdoulaye Djimdé is Professor of Parasitology and Mycology at the Malaria Research and Training Centre University of Bamako, Mali. He led clinical trials of the medication and explains how it works.In September, the World Health Organisation announced conditional approval for indoor use of spatial emanators, a device which continually releases a mosquito toxin into the air for up to a year. Epidemiologist Ellie Sherrard-Smith from the Liverpool School of Tropical Medicine in the UK explains the potential benefits and concerns for this tool.Plus, we reflect on the progress made in the malaria vaccine roll out this year and how a new formulation of a pre-existing drug is offering hope to the very youngest patientsAnd could we ever eliminate malaria completely? Next week, we consider the big ideas hoping to do just that.Presenter: Claudia Hammond Producer: Hannah Robins

James Gallagher joins Claudia Hammond to share his pick for health breakthrough of 2025 – the world's first gene therapy to treat Huntington's disease.Popular science author Mary Roach joins Claudia to discuss the future of prosthetics.Also on the show, James shares his latest reporting on how sperm from a donor with a cancer-causing gene was used to conceive almost 200 children.We hear from Mohsen Rajabi how teachers in Iran are providing first-line mental health support to refugee students as they cope with settlement traumas.Plus, how an electronic nose could help detect mould in the home.Presenter: Claudia Hammond Producer: Hannah Robins Assistant Producer: Katie Tomsett

We already knew that the shingles vaccine reduces the risk of developing dementia, but new research has shown that it also slows the progression of the disease. BBC journalist Laura Foster discusses why this might be happening.Can a negative mindset reduce the effectiveness of medical treatments? Claudia speaks with Dr Katharina Schmidt in Essen, Germany to find out about her new research on the “nocebo effect”, and learn what it means for healthcare providers.Peru has one of the highest burdens of tuberculosis in Latin America and it's a major public health challenge. Reporter Jane Chambers meets one group of health professionals working in Carabayllo who are determined to turn that around.Why the time of day you take your immunotherapy cancer medication might impact its success. Plus, can self-administered hypnosis describing cool, snowy mountains help sooth hot flashes associated with the menopause?Presenter: Claudia Hammond Producer: Hannah Robins Assistant Producer: Georgia Christie

New research shows that 20% of children under 5 years old in Nigeria have been exposed to skin lightening products; even by parents who know the risks associated with the products. Claudia speaks to Aisha, a mother, to understand why skin lightening can seem appealing, and to dermatologist Atinuke Ajani from Ile-Ife, Nigeria, who explains the growing prevalence of this trend.Epidemiologist Matt Fox joins Claudia to explain the latest breakthrough in HIV immunotherapy treatment and what research is still needed to find a cure. Momentary lapses in attention when exhausted may be your brain's way of catching up on sleep. Laura Lewis, who is Associate Professor of Medical Engineering and Electrical Engineering at Massachusetts Institute of Technology in the United States, explains the latest findings in sleep deprivation neuroscience.Claudia and Matt discuss a recent finding that medical research published by women is less likely to be retracted and the simple step that airlines could take to be better prepared for the medical emergency that causes 86% of in-flight mortalities.Presenter: Claudia Hammond Producers: Helena Selby and Georgia Christie

A recent meta-analysis finds that childhood hypertension rates (commonly known as high blood pressure) are increasing significantly around the world. Professor of cardiovascular medicine and population health at the University of Oxford, Kazem Rahimi, explains what is driving this trend. Recent changes in hormone therapy labels in the US come after years of lobbying by physicians and activists. Presenter's friend, Dr Ann Robinson, explains how our understanding of hormone therapy – its risks and its benefits – has changed over time.Can stress during pregnancy impact a baby's development even after birth? Claudia speaks to associate professor Ying Meng at the University of Rochester School of Nursing in the US to find out more about the surprising impact of cortisol on baby teeth emergence.Can weight loss drugs reduce symptoms of Alzheimer's disease? A new study sheds light on the answer. And, Health Check hears about an artificial tongue with a taste for spice.Presenter: Claudia Hammond Producers: Helena Selby & Georgia Christie

Global health journalist Andrew Green has been looking at the impact of US funding cuts on the global HIV response, and reports his findings from Botswana about the impact is it having on HIV and AIDS services there, and what new agreements may be reached on healthcare funding.New research shows that the trend in human happiness is changing, with young people now experiencing more unhappiness than those in middle-age. Claudia speaks to Alex Bryson, Professor of Quantitative Social Sciences at University College London, to find out what is driving this change.How can we reduce phantom limb pain in war amputations? Professor of anaesthesiology and pain medicine at Northwestern University, Doctor Steven Cohen, explains how Botox injections are helping Ukrainian patients recover post-amputation and improving their quality of life. A new law in Karnataka, India will allow women a day of paid menstrual leave each month – but how is it being received? Plus, the remarkable HPV vaccination success story, and what that means for global cervical cancer rates.Presenter: Claudia Hammond Producers: Helena Selby & Georgia Christie

This week it was declared that Canada is no longer measles free and as a result The Americas have lost their measles elimination status. Claudia is joined by Vanessa Apea to understand why this vaccine-preventable disease is continuing to spread in North America.COP30 is underway in Belém, Brazil, and ahead of the conference's Health Day we hear from BBC's Climate and Science reporter Esme Stallard what global health is on the agenda. Reporter Dorcas Wangira is in Nairobi investigating a crackdown on helmet safety for motorcycle taxi riders. Plus, can speaking more than one language slow down the rate at which you age? And why politicians in France are suggesting doctors prescribe working from home instead of signing people off sick. Presenter: Claudia Hammond Producer: Hannah Robins Assistant Producer: Katie TomsettImage: People stand near healthy awareness posters related to the measles outbreak during a public health awareness campaign, at the Taber Health Centre, in the largely Mennonite community of Taber, Alberta, Canada, October 27, 2025. REUTERS/Ahmed Zakot/File Photo

Last week attempts at cloud seeding to reduce pollution in Delhi failed to produce any rain. We catch up with reporter Chhavi Sachdev to find out more about official's latest and controversial attempt at tacking hazardous levels of air pollution in the city. The Maldives have become the first country to ban smoking for younger generations with no one born on or after 1 January 2007 being able to buy tobacco products. Journalist Philippa Roxby comments on what this means for health.What do the public know about the cancer risks of alcohol? Dr Sanjay Shete, Professor of Biostatistics and Epidemiology at the University of Texas, explains his research comparing the real risks to public awareness.A Finnish study has found that voting behaviours in elections are strongly linked to health, suggesting it may even be a stronger determinant than education. Plus, how walking over 5,000 steps a day may slow the cognitive decline in those with preclinical Alzheimer's disease.Presenter: Claudia Hammond Producer: Katie Tomsett & Hannah RobinsImage: A commuter walks near India Gate amid heavy smog pollution on October 29, 2025 in New Delhi, India. Delhi is once again blanketed by hazardous smog following the Diwali festival, as pollution levels spike to the "very poor" and "severe" categories, with air quality indexes far exceeding safe limits. The crisis, which is driven by firecracker use, emissions, and seasonal crop residue burning has prompted emergency measures like cloud seeding. Image Credit: Ritesh Shukla/Getty Images

U.N. Secretary General Antonio Guterres has said that global warming will ‘inevitably' surpass 1.5 degrees. What does this mean for global health? The ninth annual Lancet report on health and climate could hold some answers.Also on the program, could contaminated meat be a source for some urinary tract infections? Professor Lance Price speaks about his new study finding a link between the two. Also on the program, could how we walk affect our health more than the distance we've travelled? Health journalist Layal Liverpool joins Claudia Hammond to discuss these stories and more. Presenter: Claudia Hammond with Layal Liverpool Producer: Hannah Robbins and Margaret Sessa-Hawkins with Alice McKee

As Japan declares a flu epidemic we find out more about what's going on in the country, and the potential implications for the flu season ahead in the Northern Hemisphere.Human and bot imposters are rising in medical research, and they risk undermining results, but why do they do it? Eileen Morrow from the University of Oxford explains the tricky balance of safeguarding against them whilst not excluding real participants. A new adrenaline nasal spray has been licenced for those with severe allergies. Family Doctor Ayan Punja explains what a difference this might make for patients.The first patient has been recruited in a phase III trial investigating malaria treatments in early pregnancy. We speak to her and the researchers who are hoping to recruit further participants in Mali, Burkina Faso and Kenya.Plus, how far can you really push yourself? Researchers think they've found the ‘metabolic ceiling' for endurance athletes.Presenter: Claudia Hammond Producers: Katie Tomsett and Hannah Robins