"I don't exercise so I can live longer, I exercise so that when I am dying, I don't get sad, but think 'at least I don't have to exercise anymore'". Anyway, th

"I don't exercise so I can live longer, I exercise so that when I am dying, I don't get sad, but think 'at least I don't have to exercise anymore'". Anyway, there was a ton of research done that people over 60 can still put on muscle mass. Which obviously protects from injuries, supports posture, etc. We also have studies showing that long term runners don't have a higher incidence of knee problems than non-runners, so it does seem that the cartilage damage DURING exercise is compensated by said exercise, assuming correct form and all that.