"Science now believes exercise is not just good for your heart it can also make you smarter and that means it can make you better at what you do. It works fast too...stimulating your nervous system is one of the best ways to perform at a higher level within a short period of time. Doctor John Tatey, an associate professor of psychiatry at Harvard Medical School says, "I like to say that exercise is like taking a little Prozac or Ritalin at just the right moment...it affects mood, vitality, alertness and feelings of well-being."... read whole article