Well, I did have another relative (who was also a farmer) who made it to 74, he was overweight and smoked like a chimney. He again only ever ate lean mean, potatoes and veg, so no saturates and had good cholesterol, might have been to do with that? Then again he only put on weight after he was about 60 and started doing less, was probably more to do with that lol. Was in great shape until that point. My guess if you are obese from a young age would be no