Biological age testing kits using DNA methylation and telomere length are gaining popularity through figures like Bryan Johnson, but a NYT exposé claims his real biological age increased by 10 years. Experts debate whether the tests are accurate enough to be clinically useful.
How bio age tests work
- ▪Common biomarkers like blood pressure, cholesterol, and blood glucose already predict aging risk and are tracked in routine doctor visits
- ▪Biological age tests measure DNA methylation or telomere length to estimate how old your cells are versus your chronological age
Popularity and controversy
- ▪Bryan Johnson claims his biological age is 5.1 years younger than when he started his anti-aging quest, spending millions annually
- ▪Bio age tests are promoted on popular podcasts by Peter Attia, Joe Rogan, and Andrew Huberman, with dozens of mail-order kits now available
- ▪A New York Times exposé claims Johnson's biological age has actually increased by 10 years despite his interventions
Debatable claims
- ▪Commercial biological age tests are accurate enough to guide personal health decisions
- ▪Biological age testing provides actionable information beyond what routine blood work already tells you
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