I don't know; if you're still around when I get there, I'll let you know, though.
My grandfather is 74 this year. He's had lymphatic cancer for the last couple years, but he's actually doing better now than when they found the cancer. Up at 6 every morning, up until 2 doing tasks and errands, or just keeping busy, usually. This time of year he's usually not home - he's off in one of several different states hunting or trapping.
When I was a kid (well, about 14 years ago, so he was just about 60) he'd come out here and we'd go pheasant hunting. I was fast for my age, in karate, and probably more fit than most. Yet he'd still have a lot more energy than I at the end of the day. To this day, he honestly doesn't look a day older...
Eat well, eat right, and keep consistently exercising, he says... While that's true, I think a lot of it has to do with genetics, to be honest. His father (my great-grandfather) had his back broken
twice (he recovered fully the first time, mostly the 2nd time, but he was 93 when that happened - and he died), and there's a history of healthy longevity in my family. Some families have people start dying from poor health/old age and wearing out in their 40s - and while there's certainly some diet and lifestyle involved there - I can't see that happening without a predisposition for it.