Health Check

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

Rogelio Navarro, field reporter who covered a grassroots prosthetic programme in Guadalajara. Dacher Keltner, Berkeley psychologist studying awe and emotion. Andrew Green, global health journalist tracking conflict-driven health threats. They explore how awe arises from space, nature and art. They also discuss war-related supply and cyber risks to healthcare, and a user-focused, affordable robotic prosthesis project.

Dr Leila Ghalichi, senior researcher on pre-hospital care, and Dr Michelle Wong, chemist behind LabMuffin Beauty Science, plus BBC health reporter Philippa Roxby. They discuss Australia’s sunscreen testing scandal and proposed regulatory fixes. They cover SPF testing variability, real-world application and labeling changes. They also explore IVF mix-ups in Northern Cyprus, using mosquitoes to vaccinate bats, and delays reaching trauma care in several countries.

Chhavi Sachdev, journalist covering India’s snakebite crisis and national plan. Dr Antoine Abou Fayad, Beirut-based microbiologist studying conflict-driven drug resistance. James Gallagher, BBC health correspondent explaining outbreak responses. They discuss how war fuels multidrug resistance, heavy metals causing cross-resistance, spread of pan‑resistant strains across borders, meningitis outbreak responses and vaccine safety, and India's antivenom challenges.

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.Erika 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