Discovery

Throbbing head, nausea, dizziness, disturbed vision – just some of the disabling symptoms that can strike during a migraine attack. This neurological condition is far more common than you might think, affecting more people than diabetes, epilepsy and asthma combined. While medications, to help relieve the symptoms of migraine, have been around for some time, they haven’t worked for everyone. And w...

Kip Thorne is an emeritus professor of theoretical physics at Caltech, the California Institute of Technology, and someone who has had a huge impact on our understanding of Einsteinian gravity. Over the course of his career Kip has broken new ground in the study of black holes, and been an integral parts of the team that recorded gravitational waves for the very first time – earning him a share in...

It's summer - no really - and although the weather might have been mixed, the sporting line-up has been undeniably scorching - from the back-and-forth of Wimbledon, to the nail-biting Euros, to the current pageantry of the Summer Olympics. Next month the 2024 Paralympic Games get underway in Paris, involving the world’s very best para athletes; and Professor Vicky Tolfrey is at the forefront of th...

The engineering industry, like many other STEM sectors, has a problem with diversity: one that Dawn Bonfield believes we can and must fix, if we're to get a handle on much more pressing planetary problems... Dawn is a materials engineer by background, who held roles at Citroën in France and British Aerospace in the UK. But, after having her third child, she made the difficult decision to leave the...

In recent decades, we have taken huge steps forward in treating formerly fatal viruses - with pharmacological breakthroughs revolutionising treatment for conditions such as HIV, hepatitis and herpes. Raymond Schinazi has played a big role in that revolution. Ray was born in Egypt, where his mother’s brush with a potentially deadly illness during his childhood inspired a fascination with medicine....

From anorexia nervosa to binge-eating, eating disorders are potentially fatal conditions that are traditionally very difficult to diagnose and treat - not least because those affected often don’t recognise that there’s anything wrong. But also because of the diverse factors that can influence and encourage them. Janet Treasure is a Professor of Psychiatry at King’s College, London - where she's fo...

Marfan syndrome is a genetic disorder that makes renders the body’s connective tissues incredibly fragile; this can weaken the heart, leading to potentially fatal aneurysms. What’s more, anyone with the condition has a 50/50 chance of passing it on to their children. Dr Anne Child is a clinical geneticist who’s dedicated her professional life to finding answers and solutions for people affected by...

Many of us have heard of seismology, the study of earthquakes; but what about asteroseismology, focusing on vibrations in stars? Conny Aerts is a professor of Astrophysics at the University of Leuven in Belgium - and a champion of this information-rich field of celestial research. Her work has broken new ground in helping to improve our understanding of stars and their structures. Conny describes...

When does a crowd of people become unsafe? How well will the football team Aston Villa do next season? When is it cost-effective to replace a kitchen? The answers may seem arbitrary but, to Nira Chamberlain, they lie in mathematics. You can use maths to model virtually anything.

A top secret little-known mission that changed the outcome of World War II. Not Alan Turing's Enigma code-breaking mission but a daring foray, conducted behind enemy lines on the shores of Normandy. Harrison Lewis and wetland scientist Christian Dunn re-enact one of the most remarkable feats of the Second World War and discover the intricate details of the daring but forgotten science that underpi...

Take a trip around the supermarket and you'll see shelves of products claiming to be 'high in protein'. Scroll through your social media and you'll find beautiful, sculpted people offering recipes and ideas for packing more protein into your diet. Science presenters Dr Julia Ravey and Dr Ella Hubber have noticed this too. They wanted to unpick the protein puzzle to find out what it does in our bod...

What is the universe made of? Where does space dust come from? And how exactly might one go about putting on a one-man-show about Sir Isaac Newton? These are all questions that Mike Edmunds, emeritus professor of astrophysics at Cardiff University and president of the Royal Astronomical Society (RAS), has tackled during his distinguished career. And although physics is his first love, Mike is fasc...

With 86 billion nerve cells joined together in a network of 100 trillion connections, the human brain is the most complex system in the known universe. Dr Hannah Critchlow is an internationally acclaimed neuroscientist who has spent her career demystifying and explaining the brain to audiences around the world. Through her writing, broadcasting and lectures to audiences – whether in schools, festi...

The reputation of the nuclear industry has had highs and lows during the career of Dr Fiona Rayment, the President of the Nuclear Institute. But nowadays the role of nuclear science and engineering has become more widely accepted in the quest for carbon net zero. Growing up in Hamilton, Scotland during a time of energy insecurity, Fiona was determined to understand more about why her school lacked...

Dr Sheila Willis is a forensic scientist who was Director General of Forensic Science Ireland for many years. She has spent her life using science to help solve cases, working on crime scenes and then analysing material in the lab, and presenting scientific evidence in court. It’s a complicated business. Forensic science relies on powerful technology, such as DNA analysis, but it cannot be that al...

Professor Charles Godfray, Director of the the Oxford Martin School tells Jim Al-Kahlili about the intricate world of population dynamics, and how a healthy obsession with parasitic wasps might help us solve some of humanity's biggest problems, from the fight against Malaria to sustainably feeding a global community of 9 billion people.

Sir Jonathan Van-Tam, or ‘JVT’ as he's arguably better known, first came to widespread public attention in his role as Deputy Chief Medical Officer during the Covid-19 pandemic. But even before that, Jonathan had built an impressive career based on a long-held fascination with respiratory illness and infectious diseases. He’s worked across the public and private sectors, contributing significantly...

Dr Chris van Tulleken wrestles with the dilemma of slaughter. Could he bring himself to dispatch an animal himself? Is he happy supporting an industry which kills animals in his name? And if not, what could he eat instead? Chris explores the rise of the alternative protein industry – plant-based meat alternatives, lab-grown meat, or most shocking of all for some, actual meat abstinence, Veganism....

We're a planet addicted to chicken and our appetites fuel a massive global industry, but is it one we should support? While some cite it as a shining example of a super-efficient food production system, one that could help drive food security around the world, others say it is a cruel, destructive and outdated structure that makes a few people richer while exploiting others – along with animals an...

Like many of us, Dr Chris van Tulleken is always trying to eat better food: healthy, high welfare, good for the environment. This kind of consumer demand is making the chicken industry better, in tiny increments. So why do so many of us give ourselves a pass when it comes to the food we know we should not be eating - fast food? Chicken is at the very heart of this industry. As a cheap meat that do...

For eons, salt has been crucial to human health, culture, and diet. On this episode of The Evidence, we explore the strange science of salt taste – why it can be sweet, salty, or even a flavour enhancer. We look at how salt keeps our bodies running, and what happens if we have to little of it. And while too little salt may be bad, too much is also a problem. What does the science say about how muc...

Do YOU know what you're eating? Are you sure? Dr Chris van Tulleken is keen to make good food choices, and buy the best chicken possible for his dinner. High welfare, tasty, and good for the environment, ideally. But it's not as easy as that. How CAN he make good food choices if he has no idea what he's buying? Chris explores what we actually know about the food we buy, and to what extent we can t...

We’ve heard about the potential problems around chicken welfare. But how does that square with their impact on the environment? Dr Chris van Tulleken finds out what it takes to produce the most eco-friendly chicken meat possible. And makes a devastating discovery. Welfare concerns, and environmental credentials, often pull in OPPOSITE directions. Does he want to eat the happiest birds, or the ones...

We eat chicken. A LOT of it. We might love the taste, but what about how we're treating those birds? After witnessing first-hand the reality of indoor chicken farming - how most of the chicken we eat is raised - Dr Chris van Tulleken wants to know: are the birds happy enough, or is our method of rearing cheap chicken actually cruel? If so, what’s the ‘happier’ alternative – and do carnivores like...

So we started farming this bird called chicken, and it spread around the world. But what does it actually TAKE to feed us the amount of chicken we want to consume? 100 years ago this was a scrawny, egg-laying bird, only good for a stew once her eggs ran out – no one ate chicken meat. Fast forward to today and it’s the most consumed protein on the planet. How did we come to eat it in the first plac...