Ok to be blunt, I've noticed that there are almost no fat people here at b-school. I am not sure if that is a function of the school I go to, very outdoorsy and althletic or just a function of the kinds of people who go to b-school. That is, people that go to b-school tend to be more ambitious, focused and definitely take a certain level of pride in thier apperance.
It is interesting when I realized today that I am the biggest girls here in terms of size. Everybody else is like a size four to eight with maybe a couple of 10's and I am huge with my mid-teens!
Anyway, I am in the middle of study group on a break. My advice to folks is start early and manage your time well. Try not to get caught up in the fact your campus has wireless and that you can get your instant messanger from class!