High-volume resistance exercise late in life may slow the epigenetic clock (DNA methylation) of skeletal muscle, which could improve healthspan.

noli's read

This advice is based on recent research in gerontology and molecular biology, notably the work of Kevin Murach et al. (study published in Journal of Applied Physiology). The analysis relies on observational and mechanistic evidence showing that exercise alters DNA methylation markers, which are often correlated with biological aging. It is scientifically sound to state that muscle tissue retains remarkable plasticity even at an advanced age, and that mechanical stress via resistance influences gene expression. However, the term 'clock' is a simplification: while these markers change, the direct and causal link to an overall increase in human healthspan remains a cautious interpretation rather than an established clinical certainty. The creator uses the conditional 'MAY', which is an important nuance. The evidence is solid at the molecular level, but the direct transfer to a concrete prolongation of life still requires large-scale longitudinal studies.

the sources

1. 1Horvath S 2013
2. 2Belsky DW, Caspi A, Corcoran DL, et al. 2022
3. 3Wu Y, Wang W, Liu T, Zhang D 2017
4. 4Li R, Xia J, Zhang X, et al. 2018