338. Spermidine & Longevity: Myths, Autophagy and the future of healthy aging with Leslie Kenny (English)

Today we are joined by a very special guest and dear friend of the Biohacking Girls community in Norway — Leslie Kenny , founder of Oxford Healthspan and a leading voice in the global longevity field. Leslie has spent years studying how we can support cellular health, slow biological aging, and improve healthspan — the years we live with strength, clarity and vitality. She is also one of the most loved speakers at Biohacking Weekend , and this year she returns to Norway for the fifth time . In this episode we dive into one of the most talked-about molecules in longevity science: spermidine . Spermidine is a naturally occurring compound found in many foods and is being studied for its role in autophagy , the cellular “recycling system” that helps maintain healthy cells as we age. But there are also many misunderstandings around this topic. In this conversation we explore: • What spermidine actually is and why scientists are interested in it • The difference between food-derived and synthetic spermidine • Why “more is not always better” in longevity science • Why supplements should never replace lifestyle foundations • How autophagy supports cellular renewal and immune resilience • Why longevity science needs more female-specific research • Spermidine-rich foods and the idea of a food-first approach • What Leslie is seeing right now in the global longevity field • The shift away from miracle molecules toward whole-system health We also discuss the broader perspective of longevity: not about living forever, but about maintaining strength, cognitive clarity, mobility and independence as we age. Links to read more: If you want to learn more about longevity science, cellular health and the future of healthy aging, Leslie will be speaking live at Biohacking Weekend 2026 in Norway , 21 th and 22nd of March. Join us for a weekend filled with inspiring talks, cutting-edge science and practical tools for optimizing health. Sign up for Biohacking Weekend 2026 here:

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338. Spermidine & Longevity: Myths, Autophagy and the future of healthy aging with Leslie Kenny (English) is an episode from Biohacking Girls Podcast.

This episode is 00:43:56 long.

This episode was published on Mar 6, 2026.

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