My father (a Brit) made it to 79, he lived in Asia for about half of his life. Was never overweight, never smoked, didn't drink much, didn't eat much. Wasn't interested in sport, so didn't do any except a bit of swimming. Alzheimers and a minor stroke got him in the end.
I figure I'll make it to about the same age although I hope I make it to the age my mum managed which was 86.