Why do you think exercise improves health? Is it just an educated guess (if so, then what is the reasoning behind it), or is there actually some study establishing causality? I found https://bjsm.bmj.com/content/52/14/890 which says: > As presented by Kujala, RCTs, the gold standard in epidemiology for inferring causality, have failed to provide conclusive evidence in this context (eg, Lifestyle Interventions and Independence for Elders,8 Look Action for Health in Diabetes,9 Heart Failure: A Controlled Trial Investigating Outcomes of Exercise Training10 and other large-scale meta-analyses).
Why do you think exercise improves health? Is it just an educated guess (if so, then what is the reasoning behind it), or is there actually some study establishing causality? I found https://bjsm.bmj.com/content/52/14/890 which says:
> As presented by Kujala, RCTs, the gold standard in epidemiology for inferring causality, have failed to provide conclusive evidence in this context (eg, Lifestyle Interventions and Independence for Elders,8 Look Action for Health in Diabetes,9 Heart Failure: A Controlled Trial Investigating Outcomes of Exercise Training10 and other large-scale meta-analyses).
OTOH I’ve found https://www.fightaging.org/archives/2018/04/finding-a-causal-relationship-between-exercise-and-longevity-in-human-data-is-more-challenging-than-one-might-imagine/ claiming that
> It is straightforward enough to prove that exercise extends healthy (but not average or overall) life span in studies of mice. (...). It is felt that these correlations likely reflect causation because of the extensive animal studies and the essential similarities of biochemistry between the mammalian species involved, but that isn’t the same thing as a rigorous determination.