This has nothing to do with aging and sports, but is a bit relevant to the topic at hand. My inlaws are both in their 60's, and act as if they're older than dirt. They complain about their multitude of aches and pains, and the only activities they engage in are sitting in their house watching TV, and going out to eat. They have visited every restaurant in this county since they moved here 4 years ago. They are fat, and out of shape and OLD.

Contrast that to my 96 year old grandfather who is blind, who walks 5 miles a day, has a vast social network, has a multitude of interests (he is a GREAT fiddler, despite having lost a few of his fingers to various woodcutting accidents - yes, he was operating saws while BLIND), he continues to get up on his roof when it needs repairs, much to my dad's consternation, he just sold his sailboat because his sighted buddy who used to sail with him passed away last year. He is more active physically and mentally than a lot of 40 year olds I know.

Age ain't nothing but a number; a great deal of it is all about what's in your head. Sure, biology has A LOT to do with it, but I think attitude has more influence. Just my two cents....