I was reading a post earlier and notice this "Wish I had been a Jiu-jitsu man my whole career - I believe it would have been kinder to an aging body. I'm 62 now and every damn thing hurts." I keep hearing long time Tae Kwon Do students/instructors getting some back pains I keep hearing long time Karate students/instructors getting some joint pains I keep hearing blah blah blah blah so you will know what I am talking about Now I just read "should have take Jiu-Jitsu and would have been kinder to an aging body" Is that true ? So I am 44.5 years young and still a karate guy (japanese/korean) No, I am not in pain yet but stiff ... I need to do more stretching. What about Tai Chi ? what are your thinking, thought etc about it or anything good or bad ? I would like to know the whole nine yard talk Thanks. I like combat Hapkido style and still waiting to learn (nothing close by here) ... and best of all, self-defense (control/subdue/combat).