I am taking too many AP classes plus I am in a chess club. Now what happens is that even though I have an A so far in all of my subjects. I can't get rest. Literally, I study till my mind starts burning, then when it gets really hot, I jump in the swimming pool for half an hour, then study for rest of the day. Do you think this might have any long term side effect? Btw, I get full sleep and I dont have glasses. I also don't watch tv and barely sit on comp these days. My only physical activity other than swimming is playing table tennis once a week for 5 hours. Even on weekends, I am exceptionally busy doing my studies.