The Optispan Podcast with Matt Kaeberlein

A Geroscience Roundtable: de Grey, Kennedy & Kaeberlein on the Path to Longevity Escape Velocity | 123

Aug 14, 2025

Guest

Brian Kennedy

Guest

Aubrey de Grey

Join longevity pioneers Aubrey de Grey, a biomedical gerontologist focused on rejuvenation strategies, and Brian Kennedy, an expert in aging biology. They share fascinating insights on achieving longevity escape velocity, debating the benefits of damage-repair versus growth-slowing methods. Aubrey discusses his groundbreaking mouse studies and the search for effective combination therapies, while both express cautious optimism about emerging clinical applications. They emphasize the importance of transparency in experimental treatments and the future potential of biological age measurement.

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INSIGHT

New Late-Life Rejuvenation Candidates

Aubrey lists promising late-life rejuvenation candidates: albumin/plasma dilution, OSK gene therapy, IL-11 and CDK5 targets.
He plans to start new mouse studies at ~18 months to test these orthogonal mechanisms.

INSIGHT

Deuterated Fatty Acids As Orthogonal Approach

Deuterated fatty acids aim to reduce lipid peroxidation by stabilizing bis-allylic hydrogens and may yield outsized effects from partial replacement.
New catalytic manufacturing cut costs, enabling larger animal studies with promising unpublished results.

INSIGHT

Clinic Offerings Often Appear Sketchy

Aubrey warns many clinic-offered experimental therapies look 'sketchy' and patients often can't judge scientific credibility.
He stresses credentialed presenters can still overstate confidence, confusing non-scientist audiences.

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Subscribe to our channel: https://www.youtube.com/@optispanGet Our Newsletter (It's Free): https://www.optispan.life/Join longevity pioneers Dr. Aubrey de Grey, Dr. Brian Kennedy, and Dr. Matt Kaeberlein for a rare, unfiltered discussion on the future of aging. They debate the timeline for longevity escape velocity, the promise of new damage-repair therapies, and offer their candid thoughts on today's experimental treatments.0:00 - Intro1:50 - Longevity Escape Velocity: Are We Close?7:20 - The Big Debate: Damage Repair vs. Slowing Growth15:36 - Aubrey's Groundbreaking Combination Study in Mice21:17 - The Stacking Problem: Why Don't Combinations Always Work?33:42 - The Clinical Frontier: What's Real vs. "Sketchy"?47:03 - Gene Therapy & TPE: Would These Experts Do It?1:00:13 - The Future: What Are They Most Excited About?Production: Nicholas Arapis, https://videocastproductions.comDISCLAIMER: The information provided on the Optispan podcast is intended solely for general educational purposes and is not meant to be, nor should it be construed as, personalized medical advice. No doctor-patient relationship is established by your use of this channel. The information and materials presented are for informational purposes only and are not a substitute for professional medical advice, diagnosis, or treatment. We strongly advise that you consult with a licensed healthcare professional for all matters concerning your health, especially before undertaking any changes based on content provided by this channel. The hosts and guests on this channel are not liable for any direct, indirect, or other damages or adverse effects that may arise from the application of the information discussed. Medical knowledge is constantly evolving; therefore, the information provided should be verified against current medical standards and practices.More places to find us:Twitter: https://twitter.com/optispanpodcastTwitter: https://twitter.com/optispanTwitter: https://twitter.com/mkaeberleinLinkedin: https://www.linkedin.com/company/optispanInstagram: https://www.instagram.com/optispanpodcast/TikTok: https://www.tiktok.com/@optispanhttps://www.optispan.life/Hi, I'm Matt Kaeberlein. I spent the first few decades of my career doing scientific research into the biology of aging, trying to understand the finer details of how humans age in order to facilitate translational interventions that promote healthspan and improve quality of life. Now I want to take some of that knowledge out of the lab and into the hands of people who can really use it.On this podcast I talk about all things aging and healthspan, from supplements and nutrition to the latest discoveries in longevity research. My goal is to lift the veil on the geroscience and longevity world and help you apply what we know to your own personal health trajectory. I care about quality science and will always be honest about what I don't know. I hope you'll find these episodes helpful!