I really like this post on the Happy Hospitalist blog. Med school is hard work - not only mentally, but it can take a savage toll on your emotional and physical health, and your relationships. It can be hell if you are not ready for it, and can still be hell even if you are prepared.
For those of you who are going to be starting medical school next year or in the next little while, get your stuff sorted NOW, and get it sorted well, because it can all fall in one big heap when you get sucked into the living vortex of shit that is medical school. It is wonderful, but is also terrible, all at the same time. Enjoy.