That doesn't seem to happen to everyone; I'm turning 38 this year, and so far my body doesn't look or feel much different from when I was in college (still no r

That doesn't seem to happen to everyone; I'm turning 38 this year, and so far my body doesn't look or feel much different from when I was in college (still no real propensity to store fat). I eat healthily, anyway (little caffeine/alcohol, and a well-balanced diet), because I feel better this way, and just looking fit is a bit useless if I die of a heart attack at 55 anyway, or feel like crap because of poor nutrition. Skinny people with poor diets may stay skinny anyway, but their health is still going to be affected in other ways. I still have huge respect for people who manage to make serious changes to their eating habits, or eat fewer calories than their bodies want (i.e., just withstand some level of hunger on a daily basis).