Taking longer to heal and recover as we get older isnât strictly a psychological and/or societal thing. Thereâs actual evidence (I intentionally didnât say proof) for this phenomenon. Telomeres (the end caps of chromosomes) shorten with each cell division. The more they shorten, the less they divide and create new cells. Creating new cells and replacing damaged cells is what recovery and increases in physical conditioning really is in a sense.
When cells arenât being repaired and replaced as easily and/or with âgood cells,â recovery and gains are more difficult. This is easiest seen in skin cells. As we age, skin gets looser, wrinkled, etc. Skin cells turn over quicker than any other human cell (I believe). If it wasnât for the aging process, skin would look and feel just as good as newborn skin cells, as theyâre not much older. Itâs the quality of the cells themselves - theyâre not as good at producing elastin, collagen, etc., and theyâre not being made as quickly either. This could very well be due to the telomeres shortening. Environmental factors play an obvious role, but the best environmental factors wonât make up for genetics.
Take the skin stuff I mentioned and apply it to every other cell type; muscle, tendon, ligament, everything.
So yeah, in other words, thereâs more to aging than society telling us to slow down and old wivesâ tales.
An article on telomeres and research on treatment attempting to lengthen shortened telomeres from Stanford University...
Telomere extension turns back aging clock in cultured human cells, study finds