I'd like to respond back for those who say this thread scares them, since I am one of those now taking antidepressants. First of all, my situation was a huge part of my depression, not just teaching itself: I moved across country, to a big city where I had few friends and no family, to teach in a struggling inner-city school, in a grade level and subjects I had no experience in, five days after completing an accelerated Masters/certificate program, which I started one week after returning from teaching in a foreign country, where I was also depressed but never sought help. Soooo...yeah. It wasn't just teaching that lead me to a breakdown! Don't let this thread scare you. Let it make you take your preparation seriously, and make you think seriously about your reasons for becoming a teacher. I am now in my second year, and it is still hard, but I'm glad I'm still here. Without the meds, I probably wouldn't have made it through last year.