
The Human Upgrade: Biohacking for Longevity & Performance I Cracked The Code To Staying Lean In My 50s (Here's How) : 1396
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Jan 11, 2026 Discover why 72 hours of fasting might be the key to reversing aging. Dave Asprey explains how typical 16-hour fasts fall short, missing the deeper repair phase your body craves. Learn about the critical role of autophagy in cellular repair and the dangers of common fasting mistakes. He provides insights on what happens physically during a 3-day fast, including ketosis and stem cell activation. Plus, get expert tips on preparing for and breaking a fast to maximize benefits.
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Aging Is Cellular, Not Calendar-Based
- Aging is driven by cellular damage, not calendar years.
- Dave Asprey says measuring cellular function beats counting birthdays to assess aging.
Personal Reversal Of Biological Age
- Dave Asprey reversed his biological age by about two decades through targeted lifestyle changes.
- He cites lab tests showing his biology measures younger than his chronological age.
Modern Life Sabotages Mitochondria
- Mitochondria are central engines that degrade with chronic stress, poor sleep, and constant eating.
- Dave explains that persistent high insulin and cortisol block repair and let damaged mitochondria accumulate.



