The Naked Scientists Podcast

This week, Rachael Ralph investigates sugar. Perry Bateman from British Sugar tells her how white sugar and demerara differ; the British Dental Association's Mick Armstrong explains how a high-sugar diet leads to cavities; and Lucy Chambers at Diabetes UK looks at the long-term consequences of high blood sugar. Are artificial sweeteners truly better? Gunter Kuhnle and Jason Halford weigh in. Like this podcast? Please help us by supporting the Naked Scientists

Today, we explore a Japanese mission to return a sample from Phobos. What might the project tell us about Mars's moons? Plus, Mariam Jamal-Hanjani at Cancer Research UK on Pope Leo's lung cancer diagnosis and treatment; scientists develop a DNA typewriter to track where all the cells in a mouse come from, and can we put a price on the value of breastfeeding? Chris Smith and Rachael Ralph report. Like this podcast? Please help us by supporting the Naked Scientists

Today, what causes ageing, and why some animals age faster than others. Joao Pedro Magalhaes discusses ageing biochemistry; Noah Snyder-Mackler links "jumping genes" to shorter lifespans in big dogs; Stephen Clark introduces Jonathan, the 194-year-old tortoise; and Andrew Steele explains Peto's Paradox, showing why large animals get less cancer than expected. Like this podcast? Please help us by supporting the Naked Scientists

Coming up, the US places restrictions on Starlink in Ukraine, and MI5 chief Sir Ken McCallum warns that AI is accelerating cyber threats from Russia. Plus, an electronic sensor that can help detect Parkinson's disease, the health of a generation raised on sugar rations, and why dogs can understand our words and intonation. Like this podcast? Please help us by supporting the Naked Scientists

Today, Rachael Ralph explores menopause and perimenopause. This episode features renowned gynecologist Heather Currie on what we know about this stage of life and who it affects; GP and broadcaster Nighat Arif on menopause-related problems and possible treatments; Uri Alon at the Weizmann Institute of Science on whether menopause involves a 'cliff-like' decline; and Lachlan MacBean at the University of Exeter on his team's research. Like this podcast? Please help us by supporting the Naked Scientists

A 28-year-old Russian researcher has reportedly died after contracting pneumonic plague. What do we know about this medieval-era disease? Plus, we unpack the 2026 Nobel Prizes, the world's first self-setting nuclear clock begins ticking in Vienna, and why scientists are simulating microgravity on cells in a dish. Like this podcast? Please help us by supporting the Naked Scientists

In this special episode, in partnership with Frontiers Science House, we launch our new Why? series by asking one of the biggest questions of our time: Why AI? Why has artificial intelligence advanced so rapidly, why does it work the way it does, and why could it fundamentally change how we think, work, and live? To explore the answers, we hear from four remarkable voices at the heart of the AI conversation: Geoffrey Hinton, Mike Wooldridge, Cristina Criddle, and Wendy Hall. Like this podcast? Please help us by supporting the Naked Scientists

New CRISPR technology tool uncovers genes that have become resistant to chemotherapy drugs. We speak with the scientist behind the cancer discovery. Plus, how butterflies use their wing patterns to confuse and evade predators; why Fiji has declared HIV a national emergency; and how SpaceX's Starship rocket launch is fuelling the race back to the Moon. Like this podcast? Please help us by supporting the Naked Scientists

Today, in partnership with British Heart Foundation (BHF), we take on the world's biggest killer: heart disease. This episode features BHF's Ruth Goss on why this disease kills so many people; Will Watson at the Royal Papworth Hospital in Cambridge on what arterial disease looks like under a microscope; Cathy Shanahan at King's College London on attempts to stop blood vessels from becoming hard and stiff; and BHF's Sonya Babu-Narayan on risk management and heart disease treatment. Like this podcast? Please help us by supporting the Naked Scientists

Coming up, scientists discover why the UK's recent men B outbreak was so severe. How did they do it? Also ahead: an international study suggests that bats originated in Europe 65 million years ago; how a tiny single-celled organism can survive at high temperatures; and the search for the resting place of Egypt's heretic queen, Nefertiti. Like this podcast? Please help us by supporting the Naked Scientists