work out fanatic

Lately I've become a bit of a fitness fanatic and it's starting to impact on my school work. I mean, I haven't really ever been one to do things early or get on studying in the first week of school, but now that I spend at least an hour in the gym every day, I don't really feel like doing anything when I come home. My work is mostly done on afternoons off and it's a bare minimum at that. I keep telling myself that this is for my mental health and that it's ok to take some time for myself - but really, is it ok to take time for yourself in medical school? It's a 4 year period in which you're supposed to learn everything about medicine, that's a lot, especially when you add in personal growth and development, relationships and extracurricular activities to make that all important dean's letter look good. There aren't enough hours in the day for everything I want to accomplish but I don't want to sacrifice the things that make me feel good about myself, like fitness. It's a good way to ward off those winter blues and to meet people outside of medicine. I need to start studying for finals soon though - 6 weeks and counting...