I can't for the life of me understand why people want to live up to and after 100. Most people who are over eighty have numerous medical problems and have to take so many meds that bad interactions are common and could possibly kill them off sooner than otherwise. I mean, I thought that we are supposed to enjoy live, and quite frankly, taking a bunch of pills and dealing with diseases that develop as we age (arthritis, heart problems, etc.) doesn't sound like a lot of fun to me . I guess that is why research is trying to find ways to slow all the damage that aging causes. For now, though, eighty is good enough for me.