Fat people may have a slower metabolism, which looking at other animals, slower metabolism = longer lifespan
Fatter people have more reserves of energy. When they get sick, the body has more to draw on. A Thin person getting sick and no appetite will be hit a lot harder.
In old age, a fat person who has a fall will likely not get as damaged as a thin person
Humans are animals. We are designed to carry and store fat. Its not a bad thing (unless too much!)
I am not talking about being obese here in my above points. Just a little more towards the current 'overweight' category. And being fat doesn't have to come from junk food. Back doing karate a while back, I looked far better at 69kgs than I do today at 69kgs (my 'normal' weight range is 65-79kgs). I have been 79kgs once before, but that was from crap food. I am sure if I was at the gym and eating good food, I would have looked much better at 79kgs and be healthier too.
Alex Libman, on Mar 31 2010, 11:14 PM, said:
You might be right, but then again fit people might be denying themselves pleasure from food (for which they may be compensating through other means) and sacrificing hours in the gym in vain, while fat people will have access to the same medical breakthroughs which really make the difference, and possibly access them sooner if they spend the time others spend working out by pursuing an additional income or looking into experimental surgical procedures. There is no objectively right or wrong prediction - it's a matter of individual choice.
I myself am overweight even though I'm a strict vegan who fanatically avoids all sweets (even fruits) and artificial substances, and drinks nothing but water. I eat nothing but beans and raw vegetables, and my weight remains the same. Sedentary lifestyle and bad genes...