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 Blackwell

(Photo: 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, 2 April, 2026. Credit: Nasa/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.

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

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