

Episode 77: Anti-ageing, part 1
Jun 24, 2025
Dive into the fascinating world of anti-aging, where goat blood transfusions and miracle supplements reign supreme. Explore the science behind rapamycin and metformin, and discover how calorie restriction might hold the key to longevity. The discussion scrutinizes exaggerated health narratives, urging a skeptical approach to unverified claims. Plus, unravel the complexities of DNA methylation and its impact on aging. The humor and personal anecdotes provide a refreshing take on the societal challenges of growing older while critically assessing the quest for eternal youth.
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DNA Methylation as Aging Clock
- DNA methylation patterns serve as an accurate biomarker, predicting biological age and mortality risk.
- Smoking dramatically increases DNA methylation, showcasing a strong link to accelerated aging markers.
Yamanaka Factors Reset Cells with Risks
- Yamanaka factors can reverse cellular aging by resetting cells to pluripotent stem state.
- However, full activation leads to organ failure or cancer, limiting its practical use currently.
Metformin Longevity Evidence is Mixed
- Observational studies linking metformin to extended lifespan are confounded by patient selection and treatment biases.
- A large 2022 Danish study contradicted earlier findings, showing metformin users had higher mortality than non-users.