Meet the weird mammal that stops aging - the world's top expert spills its secrets

Even though it’s undeniably...aesthetic-challenged, the naked mole-rat is the envy of the longevity world. Its risk of death barely changes with time; it shrugs off cancer, stays fertile for decades and seems to skip every hallmark of aging that hobbles the rest of us. But why? What evolutionary forces gave a mouse-sized, subterranean rodent near-immunity to aging - and what can its biology teach us about extending healthy human life? Comparative biologist Prof. Rochelle Buffenstein (University of Illinois Chicago) - who has maintained the world’s largest captive colonies and authored 200+ papers - joins LEVITY to dissect the evidence. In this episode ✅ Rochelle’s journey: from Zimbabwe farm kid to the pre-eminent naked mole-rat researcher. ✅ Eusocial society: queens, worker castes and lethal succession battles. ✅ No Gompertz slope: hard numbers that show mortality risk stays essentially flat for 40 years. ✅ Cancer resistance → high-molecular-weight hyaluronan, unusual immune cell profiles. ✅ Telomere maintenance and DNA-methylation reversal. ✅ Proteostasis on easy-mode: slow translation, durable proteins, super-charged autophagy. ✅ What actually kills a mole-rat? ✅ Translational angles: small-molecule screens, CRISPR edits, and why funding is still an uphill battle. ✅ Other long-lived species worth studying - and how young scientists can break into comparative gerontology. 👋🏼 Want to show your support? Subscribe to our channel, hit the notification bell and/or send us a Super Thanks! 👋🏼👋🏼👋🏼 Want to show your support and get some extra perks? Become a member! https://www.youtube.com/channel/UCQ2g_IsL0inKrkc6omolPdA/join 🚀 Special offer for our LEVITY audience: Join Vitalism today and receive a 30% discount on your membership using the code LEVITY at checkout. https://www.vitalism.io/membership Show notes for this episode will be available soon after this airs. Sign up for the LEVITY newsletter to get them straight to your inbox: reachlevity.com LEVITY is co-hosted by Patrick Linden, philosopher and author, and Peter Ottsjö, journalist and author. CHAPTERS 00:00 Teaser 02:37 Meet Prof. Rochelle Buffenstein 07:04 Naked mole-rats crash course 10:23 Eusocial life: Queens, workers, death matches 11:46 Extreme underground lifestyle (Low O₂, High CO₂) 18:12 Problems with inbreeding? 26:07 Don’t call them cold-blooded! 29:15 Keeping the world’s largest colony of naked mole-rats 31:45 Eating naked mole-rats 36:01 Lifespan of the naked mole-rat 38:20 Two remarkable papers 50:53 How long can they live? 52:45 Resistance to cancer 57:03 The Hallmarks of aging are no match for this rodent 59:48 Surprising immune defense 01:04:18 What’s the evolutionary rationale? 01:10:08 Translating the research 01:18:51 Other longevity champions