EssentialsEssentials
October 30, 2025

Essentials: The Biology of Slowing & Reversing Aging | Dr. David Sinclair

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In this ⁠Huberman Lab Essentials⁠ episode, my guest is Dr. David Sinclair, PhD, a professor of genetics at Harvard Medical School and a leading expert on the biology of aging.

We discuss the cellular and molecular mechanisms of aging—and how specific behaviors, such as fasting, regular exercise and NAD⁺-boosting compounds like NMN, can activate the body's natural longevity pathways. This discussion highlights how lifestyle choices profoundly influence the aging process and may even slow or reverse key aspects of biological aging.

Articles

People Mentioned

  • Clive McCay: biochemist, nutritionist
  • Ana Maria Cuervo: professor of developmental and molecular biology, Albert Einstein College of Medicine
  • Manuel Serrano: Principal Investigator, Altos Labs Cambridge Institute of Science
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  • 00:00:00 David Sinclair
  • 00:00:20 Longevity, Anti-Aging, Aging as a Disease
  • 00:02:27 Causes of Aging; Epigenome & Genes
  • 00:04:53 CD & Scratches Analogy, DNA, Silencing & Expressing Genes
  • 00:06:44 Physical Appearance & Aging
  • 00:07:36 Childhood Development & Aging, Horvath Clock, Accelerate Aging
  • 00:10:13 Rates of Puberty & Aging, Growth Hormone
  • 00:11:20 Body Size & Longevity; Epigenetics
  • 00:11:50 Fasting, Calorie Restriction & Longevity, Sirtuins, Insulin & Glucose
  • 00:15:14 Tool: Skip a Meal
  • 00:15:50 Longer Fasts & Autophagy, “Deep Cleanse”; Fluids, Electrolytes
  • 00:17:28 Sirtuins, Glucose, mTOR & Fasting; Leucine, Tool: Pulsing Behaviors
  • 00:21:37 Breaking a Fast, Tools: Do Your Best; Transitions
  • 00:24:13 Sirtuins, NAD, NMN Supplementation
  • 00:26:18 Iron & Senescent Cells; Personalize Medicine
  • 00:27:48 Tool: Blood Markers, CRP
  • 00:29:57 Tool: Aerobic & Resistance Exercise
  • 00:31:02 Estrogen, Fasting & Fertility; Aging & Rejuvenation
  • 00:33:28 Acknowledgements

This transcript is currently under human review and may contain errors. The fully reviewed version will be posted as soon as it is available.

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Huberman Lab Essentials

Dr. David Sinclair: The Biology of Slowing & Reversing Aging

Huberman Lab Essentials are short episodes focused on essential science and protocol takeaways from past full-length Huberman Lab episodes.

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