The biological aging process begins before age 20; therefore, it is imperative to adopt lifestyle habits conducive to longevity from a very young age.

noli's read

The idea that aging is a continuous process beginning early in life is supported by research on biological markers, such as epigenetics and the accumulation of cellular damage, which begin well before old age (Nature, observational study). While the concept of 'early aging' is scientifically valid, the claim that specific interventions can slow this process in young adults is more of an extrapolation than an established clinical certainty. Meta-analyses on lifestyle (diet, physical activity) confirm their protective role in long-term metabolic health, which corroborates the idea of preventive action. However, the notion of 'slowing' overall biological aging remains complex, as we lack very long-term randomized controlled trials (RCTs) proving that these habits fundamentally alter the rate of biological decline in healthy subjects under 20. It is therefore prudent to view this advice as measures for preserving overall health rather than as a definitive stopping of the biological clock.

the sources

No named source held this one up — that absence is part of the verdict.