Hello. I'm 68 and glad I just found this thread. There are a lot of good ideas contained within, although I just skimmed through the posts very quickly. Rather than go into a lengthy discussion of all the medical and health issues I've experienced, just let me say that I had a congenital malformed aortic valve that required a mechanical replacement, a titanium shoulder replacement, prostate surgery, and melanoma surgery. All of these damned things required a lot of rehabilation and I always worked my butt off in rehab because I had goals--i.e. usually wanting to get back to playing golf again as soon as possible. The issue of motivation seems to be the dominant theme here and I believe that having goals in the key. I lived the first two thirds of my life involved in a lot of sports and exercise. After retirement eight years ago, I got lazy and gained a lot of unnecessary weight because I just became careless. Currently, I am working hard to lose a lot of weight for my upcoming 50th HS reunion. That goal has enabled me to cut back on calories, especially alcohol. Another motivator is to be able to shop for clothes in places other than big and tall. This is probably redundant with what others have said, but I thought I would chime in anyway. Good luck to all.