In this final Lifespan Rewind episode, Dr. David Sinclair, A.O., Ph.D., a Professor of Genetics for over 25 years at Harvard Medical School and a leader in the field of longevity research, revisits the most surprising insights from his #1-ranked Season 1 series, combining updated commentary with key moments from across all eight episodes. The result is a thought-provoking, focused, practical guide to the science of longevity – grounded in evidence and designed for real-world application.

Whether you're new to longevity science or looking to refine your approach, this episode brings together the most important principles in one place so you can better understand not just what to do, but why it matters.

At Lifespan, our mission is to help you and your loved ones live longer, healthier lives while supporting medical research aimed at breakthroughs to extend all our lives.

Join us at: https://lifespan.com. We’re building the world’s largest longevity community who will grow, learn, and live longer together.

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Partners of the Lifespan show help us keep this program freely available as an educational resource while also supporting medical research. We only collaborate with partners whose products are grounded in strong science – and products our team has personally used for many years.

Our selected partners make it convenient for the Lifespan audience to access the tools and technologies featured in this episode – from exogenous fuel for neurons (Ketone-IQ), to wearables that track recovery, strain, and sleep (WHOOP), to smart devices that measure key health metrics such as visceral fat content and muscle gains (Withings).

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Legal & Medical Disclaimers

The Lifespan show and all related content are provided for informational and educational purposes only and are not intended as medical advice, diagnosis, or treatment. Nothing presented should be interpreted as a recommendation to diagnose, treat, cure, or prevent any disease or medical condition. This content is not a substitute for professional medical advice, diagnosis, or treatment from a qualified healthcare provider.

You should always consult with a licensed physician or other qualified healthcare professional before making decisions about your health, including starting, stopping, or modifying any treatment, supplement, diet, or exercise program.

The information shared reflects the views and opinions of the host and guests and is based on the scientific literature, their experience and expertise, and general wellness principles. Listening to or engaging with Lifespan content does not establish a doctor–patient or clinical relationship.

Health and longevity outcomes can vary significantly between individuals. Any references to studies, interventions, products, or protocols are not guarantees of specific results, and individual responses may differ.

From time to time, Lifespan may discuss or partner with third-party products or services. These references are provided for informational purposes only and should not be considered medical recommendations or endorsements of efficacy for any individual.

Lifespan Foundation is an independent 501(c)(3) non-profit organization whose mission is to support medical research.

The views expressed by Dr. David Sinclair, A.O., Ph.D., are his own and do not represent those of Harvard University, Harvard Medical School, or any affiliated institutions.