The Science of Looking Younger, Longer | Lifespan with Dr. David Sinclair #6
In a Nutshell
David Sinclair explains cosmetic aging interventions that slow or reverse skin thinning, hair loss, and graying while targeting biological aging via adversity mimetics like senolytics (e.g., navitoclax, rapamycin), peptides boosting collagen, retinoids, minoxidil, finasteride, LLLT, and PRP injections—contrasted with short-term abundance mimetics like Botox. Menopausal HRT (estrogen/progesterone matched to baseline levels) combats epidermal thinning and health risks; skin pinch test and epigenetic clocks gauge biological age, with UV avoidance, sunscreen, and lifestyle (no smoking/alcohol) essential. Upstream anti-aging (hormesis, autophagy) fixes external signs and extends lifespan, as validated by studies linking youthful appearance to lower mortality.
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Welcome to the Lifespan Podcast discussing the science of aging and how to be healthier at any stage of life. David Sinclair is a professor of Genetics at Harvard Medical School and co-director of the Paul F. Glen Center for Biology of Aging Research. This series covers why we age and interventions to slow, stop, and reverse aging. Last episode discussed cutting-edge science and procedures people are doing with doctors and might do in coming years.
Today focuses on slowing, stopping, and reversing aging of the outside of the body. Joined by co-author Matthew LaPlante. Initially skeptical about cosmetic aging episode but excited after preparation, especially parts about improving sexual function (separate episode planned). Discusses difference between interventions only for appearance and those impacting both appearance and aging. Covers keeping hair, skin, and nails looking young and reversing aspects. Nothing wrong with purely aesthetic interventions as they improve lives socially, emotionally, mentally even if not affecting biological aging. Centers on interventions with anti-aging effects.
Discusses coverups like Botox and creams, but most exciting are technologies boosting body's ability to fight aging and reverse it. Buckets: adversity mimetics (slow and reverse aging) vs abundance mimetics (short-term gain, look good, but long-term may not work or have deleterious effects).
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