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ZOE Science & Nutrition

Could fasting extend your lifespan? | Dr. Valter Longo and Prof. Tim Spector

Jan 23, 2025
Dr. Valter Longo, a leading longevity expert, and Prof. Tim Spector, a top nutrition scientist, dive into the fascinating world of biological versus chronological age. They discuss how fasting could be a game-changer for health and longevity, exploring revolutionary methods like the Fasting Mimicking Diet. Surprising findings on aging revealed through studies on twins shed light on our perceptions of age. They also address the dangers of prolonged fasting and promote balanced dietary approaches, highlighting the vital link between food choices and overall well-being.
58:02

Podcast summary created with Snipd AI

Quick takeaways

  • Biological age, influenced by cellular health, can differ significantly from chronological age, affecting disease risk and overall vitality.
  • Fasting, especially through methods like the fasting mimicking diet, can promote cellular rejuvenation without complete food deprivation.

Deep dives

Understanding Biological Age vs. Chronological Age

Biological age, determined by the health of each individual cell, differs from chronological age, which is simply the number of birthdays celebrated. One might be 60 by years yet have a biological age of 45 or even 75, which has significant implications on overall health and risk for diseases such as Alzheimer's and diabetes. The concept of 'juventology' introduced by Dr. Walter Longo emphasizes assessing one's youth span rather than just aging chronologically, framing aging not merely in years but in functional capacity. This perspective illustrates the importance of focusing on biological age to better understand health risks and longevity.

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