I caught part of an interview broadcast on NPR on the way home tonight. The interview was with Gretchen Reynolds, about her book The first 20 Minutes. It covered topics ranging from the dangers of sitting at a desk all day to chocolate milk having the right protein to carbohydrate balance for a recovery drink after a workout of an hour or more. It also touched on how exercise is good for the brain. If you have the time, it might be worth a look.