Why? with Emma Kennedy

Latest Episodes:

How is Ozempic changing the world? Jul 30, 2025

Show notes

We’re back and we’ve got some questions. Weight-loss injections are reshaping more than waistlines. They’re changing the world we live in. Drugs like Ozempic were developed to treat diabetes, but now they’re transforming how we eat, fly, dress and maybe how we think about our impulses.

This week, Emma Kennedy is joined by Professor Giles Yeo, obesity researcher at Cambridge University and author of Why Calories Don’t Count: How we got the science of weight loss wrong, to help us wrap our heads around how these so-called “skinny jabs” are changing everything.

Buy Why Calories Don’t Count: How we got the science of weight loss wrongthrough our affiliate bookshop and you’ll help fund The Bunker by earning us a small commission for every sale. Bookshop.org’s fees help support independent bookshops too.

WHY? is presented by Emma Kennedy. Produced by Liam Tait and Kathleen Johnson. Edited by Dominic Delargy. Theme music by Jade Bailey. Managing editor: Jacob Jarvis. Group editor: Andrew Harrison. Artwork by James Parrett. Additional music is from Artlist.io. WHY? is a Podmasters Production.

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Why do we fall for fake news? Jul 23, 2025

Show notes

We’re back and we’ve got some questions. How does fake news pull us in? From deepfakes to dodgy headlines, we’re constantly navigating a minefield of misinformation. It spreads faster than the truth, plays on our emotions, and can confirm what we want to believe.

This week, Emma Kennedy is joined by Dr. Gordon Pennycook, Associate Professor of Psychology at Cornell University and Dr. David Rand, Professor of Brain and Cognitive Sciences at MIT, to find out why it is so hard to combat fake news?

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Why do we laugh? Jul 16, 2025

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We’re back and we’ve got some questions. What is laughter? A joyful cackle, a nervous snort, a full-body wheeze. It’s how we react when life gets silly, or sometimes painful, or uncomfortable. We laugh to connect, to disarm and, sometimes, to survive.

This week, Emma Kennedy is joined by Laura Lexx, professional comedian with an actual masters in stand up comedy and host of Lexx Education, to help us decode the giggle. Why do we laugh? Is it really contagious?

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Why are some of us gay? Jul 09, 2025

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We’re back and we’ve got some questions. Sex, attraction, identity all bring up strong debates. For years, scientists have tried to pin down why we fancy who we fancy. Genes? Brain chemistry? Vibes? There’s no tidy answer – but could we be on the cusp of a scientific explanation?

This week, Emma Kennedy is joined by geneticist and neuroscientist Dr Kevin Mitchell, associate professor at Trinity College Dublin to talk about attraction, the ‘gay gene’, and the universal appeal of prime David Beckham.

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Could we make a real Jurassic Park? Jul 02, 2025

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We’re back and we’ve got some questions. When Jurassic Park roared into cinemas in 1993, it wasn’t just the dinosaurs that captured our imaginations – it was the idea that science might one day bring the prehistoric creatures back to life. Three decades and seven blockbusters later, the science of resurrection is edging closer to reality. Could we really bring back the dinosaurs?

This week, Emma Kennedy talks to Professor Andrew Pask, a geneticist at the University of Melbourne, about his mission to revive the Tasmanian tiger – and why recreating truly prehistoric species remains a scientific riddle.

WHY? is presented by Emma Kennedy. Produced by Liam Tait and Kathleen Johnson. Edited by Dominic Delargy. Theme music by Jade Bailey. Managing editor: Jacob Jarvis. Group editor: Andrew Harrison. Artwork by James Parrett. Additional music is from Artlist.io. WHY? is a Podmasters Production.

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Why are we obsessed with being special? Jun 25, 2025

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We’re back and we’ve got some questions. Why are we so obsessed with being special?Today, we’re diving into the strange modern urge to define ourselves at all costs. Online, in politics and beyond identity has become our currency. But as the world tilts into climate collapse, A.I. dread, and whatever mess Donald Trump’s cooking up, maybe it’s time to ask: who are we without all the labels?

Emma Kennedy is joined by Alexander Douglas, philosopher and author of Against Identity, to explore why clinging to identity might be doing more harm than good.

Buy Against Identity: The Wisdom of Escaping the Self through our affiliate bookshop and you’ll help fund Why? by earning us a small commission for every sale. Bookshop.org’s fees help support independent bookshops too.

WHY? is presented by Emma Kennedy. Produced by Liam Tait and Kathleen Johnson. Edited by Robin Leeburn. Theme music by Jade Bailey. Managing editor: Jacob Jarvis. Group editor: Andrew Harrison. Artwork by James Parrett. Additional music is from Artlist.io. WHY? is a Podmasters Production.

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What happens if billionaires become immortal? Jun 18, 2025

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We’re back and we’ve got some questions. Billionaires want to live forever – and they might just pull it off. From young blood transfusions to gene-hacking and basement labs chasing eternal youth, the ultra-rich are pouring fortunes into cheating death. But if Bezos, Thiel and co get to slow ageing, what happens to the rest of us?

Emma Kennedy talks to Richard Faragher, Professor of Biological Gerontology at the University of Brighton, and Dr. Paul Root Wolpe, Director of the Center for Ethics at Emory University, to find out what could happen if billionaires unlock immortality.

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What is scrolling doing to our brains? Jun 11, 2025

Show notes

We’re back and we’ve got questions. Are you a doomscroller? Are you endlessly flicking through a feed of memes, photos of your coworker’s holidays and articles you’ll never read? It seems harmless at first – but what if it’s rewiring how we think? This week, Emma Kennedy talks to world leading cognitive neuroscientist Dr. Earl K. Miller, the Picower Professor of Neuroscience at MIT, to find out what scrolling is doing to our brains.

WHY? is presented by Emma Kennedy. Produced by Liam Tait and Kathleen Johnston. Edited by Dominic Delargy. Theme music by Jade Bailey. Managing editor: Jacob Jarvis. Group editor: Andrew Harrison. Artwork by James Parrett. Additional music is from Artlist.io.

WHY? is a Podmasters Production.

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Why does medicine ignore women? with Naga Munchetty Jun 04, 2025

Show notes

We’re back and we’ve got questions. From misdiagnosed heart attacks to the gaslighting of chronic pain, women’s health has been stuck in triage for far too long. Women are told to trust the system – but what if the system was never built for them in the first place?

This week, Emma Kennedy talks to TV presenter and author of It’s Probably Nothing: Critical Conversations on the Women’s Health Crisis, Naga Munchetty, to ask: why does modern medicine keep failing women?

Buy It’s Probably Nothing: Critical Conversations on the Women’s Health Crisisthrough our affiliate bookshop and you’ll help fund Why? with Emma Kennedy by earning us a small commission for every sale. https://bookshop.org/’s fees help support independent bookshops too.

Image courtesy of the BBC

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How could we talk to space aliens? May 28, 2025

Show notes

We’re back and we’ve got questions. We always imagine first contact with aliens as a conversation. But what if talking is the problem? How could we ever prepare for the awkward opening lines of interstellar diplomacy? Well, here on Earth, we might already have a clue: the octopus. They learn, play, and can even recognise human faces. So could our eight-tentacled friends help us understand intelligence beyond our own planet?

Emma Kennedy talks to mollusc expert Dr. Tim Pearce, curator and the head of the Section of Mollusks at Carnegie Museum of Natural History, to find out how we might one day communicate with life from the stars.

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