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BBC World Service

Discovery

What effect will warming temperatures have on health? One place to look for answers is Bulgaria. In the summer of 2023, Bulgaria experienced numerous heatwaves, leading to the country experiencing one of the highest rates of heat mortality in Europe. But how are these numbers calculated? How exactly does heat affect us? Who is most likely to suffer from ill health due to heat? And how can we protect ourselves in an increasingly warming world? Along with a panel of experts, Claudia Hammond will explore these questions and more with a live audience at the Sofia Science Festival in Bulgaria. Are we prepared for how rising temperatures will affect our health? This programme aims to find out.

How does heat affect our health?

Katy Brand loves a high heel. Once known by friends and family for her ‘shoe fetish’, her dad even gave her a ceramic heel that could hold a wine bottle at a jaunty angle.

These days, Katy’s cherished heels from her torture days live in her cupboard. She has traded the pain for the statement trainer. But their art, history and construction still fascinate her.

So what is it about the high heel that has made it stand the test of time?

With the help of resident public historian, Greg Jenner, Katy explores the heel’s fascinating passage through time, finding a place on the feet of men, as well as women, in high and low places. Heels donned the feet of men on horseback in 17th century Persia, were adored by King Louis XIV, and gained an erotic currency with the invention of photography.

But how has science and engineering ensured the high heel’s survival?

Footwear Technologist, Mike George, shows us how the high heel is engineered, and how he can test if a particular design is teetering on the edge of safety. Social scientist, Heather Morgan, reveals the perceived benefits of wearing heels, as well as the risks when she fell foul to when fell in heels and broke her ankle.

Producer: Beth Eastwood

Picture: High heels, Credit: European Photopress Agency

High heel

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 what happens in the brain during a migraine attack was, until recently, poorly understood.

Peter Goadsby is Professor of Neurology at King's College London’s Institute of Psychiatry, Psychology & Neuroscience and is a true pioneer in the field of migraine.

Over the course of his career, he has unravelled what happens in the brain during a migraine attack and his insights are already benefiting patients - in the form of new medications that can not only treat a migraine, but also prevent it from occurring.

Peter shares this year’s Brain Prize, the world's largest prize for brain research, with three other internationally renowned scientists in the field.

The Life Scientific - Peter Goadsby

From the Hay Festival, James and a panel of experts explain what we can all do to help ourselves age well.

We discover what’s going on in our bodies when we age, the difference between biological and chronological age, as well as getting the audience moving for a physical test.

James is joined by gerontologist Sarah Harper from the University of Oxford, biomedical scientist Georgina Ellison-Hughes from King’s College London, and doctor Norman Lazarus to understand how exercise, diet, and mental health all have a part to play in how we age.

Inside Health: How can we age well?

Dr Chris van Tulleken shares stories from the making of his chart-topping podcast, Fed. In conversation with Leyla Kazim, at Hay Festival 2024.

In Fed, Dr Chris van Tulleken, investigated the entangled web of forces that shape what ends up on our plates. And he focused his investigation around one foodstuff in particular. The most widely eaten meat on our planet, a staple of nearly every diet and a global food production phenomenon: the humble chicken, Chris dug into the history of our relationship with this extraordinary animal, to try to get to the truth of why we eat so much of it, and what that means for the birds, for us, and for the planet.

In this lively conversation, recorded live at Hay festival 2024, Chris talks to Leyla Kazim about the hidden stories behind the globalised food networks of today. From industrial-scale farming, to food labelling, to ethical dilemmas, environmental quandaries, and the complexities of the world of fast food. Plus tales from the adventure that ran through the whole series: raising his own tiny flock of broiler chickens, in his back garden.

Hay Festival Special

Perhaps you couldn't drift off, or maybe you woke in the middle of the night and then couldn't nod off again.
In this edition of Inside Health we're talking all about insomnia. It’s an issue that may affect many of us at some point in our lives – but for some it goes beyond a short period of not being able to sleep and becomes something more serious.
James is joined by a trio of experts ready to answer to them: Dr Allie Hare, president of the British Sleep Society and consultant physician in sleep medicine at the Royal Brompton Hospital, Colin Espie, a professor of sleep medicine at Oxford University and Dr Faith Orchard, a lecturer in psychology at Sussex University. We’re going to find out why we get insomnia, when to seek help and how much factors like ageing, menopause, needing the loo or shift work matter. And we'll look at the latest advice and treatments. Can insomnia be fixed?

Inside Health: Can Insomnia be fixed?

In 2016, Niall McCann was left with a bruised spinal cord when he crashed his speed glider into the side of a mountain at 50mph.

He shares his journey to recovery and some unexpected life lessons he has had to navigate, from soiling himself in inconvenient places and not being able to control his flatulence, to having to re-learn how to have sex again.

We also hear from a Mountain Rescue medic on what looked like an “unsurvivable” situation and Niall’s surgeon on fixing his “exploded” spine.

Inside Health: Life after my mountain accident

A mathematician searching for love discovers that relationships aren’t always as simple as equations—are his calculations the issue, or is there something deeper at play? Meanwhile, at an engineering conference, a young researcher’s seemingly minor mistake uncovers a scandal of epic proportions. Can numbers find love or unveil problems? From personal dilemmas to professional revelations, this episode dives into the unexpected ways numbers can change lives.

Uncharted: Love Bytes

Amid the desperation of war-starved Netherlands, a doctor defies conventional wisdom to save gravely ill children, uncovering a treatment that sparks both hope and controversy. Years later, in 1967, a young female researcher detects a strange, pulsing signal. Could it be mundane interference or evidence of alien life? From lifesaving breakthroughs to cosmic discoveries, this story celebrates the determination of pioneers who challenge convention and pursue truth against the odds.

Uncharted: The grain of truth

A PhD student with a passion for whales stumbles upon a strange, eerie sound deep beneath the ocean waves, something that will soon rock her world. Meanwhile, a fisherman is stranded in the ocean late at night, completely alone. With time running out, can he be rescued before it is too late? From mysterious discoveries to life-or-death struggles, this story delves into the power of the ocean and the determination to survive.

Uncharted: Songs of the sea

Claudia Hammond and a panel of international experts look at the latest research into Covid-19, the disease caused by the new coronavirus which is sweeping through the world. 

As the disease spreads how is South America handling the pandemic? How are the indigenous people of the Amazon protecting themselves? We also look at the aerodynamics of infection - if the air in an ITU room is changed 12 times and the virus still lingers what hope do offices have? 

On the panel are Professor Lydia Bourouiba, Associate Professor at the Fluid Dynamics of Disease Transmission Laboratory at Massachusetts Institute of Technology, Dr Adam Kucharski from the London School of Hygiene and Tropical Medicine, Professor Holgar Schunemann, co-director of the World Health Organization (WHO) Collaborating Centre for Infectious Diseases, Dr David Collier, Clinical Director at Queen Mary University London and Barbara Fraser, health journalist in the Peruvian capital Lima.

The Evidence is produced in association with Wellcome Collection. 
Producers: Geraldine Fitzgerald and Caroline Steel
Editor: Deborah Cohen

The Evidence: Covid 19: Transmission and South America

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