Nothing produces the feeling of vibrant health more than regular exercise and staying fit.
Not only does a physically fit person cut his heart attack risk in half, but he also slows the aging process. Exercise stimulates the secretion of endorphins from the pituitary gland. These have a morphine-like action which helps produce a natural euphoria which can help control pain. Many psychiatrists prescribe exercise as treatment for mental depression. Perhaps the most beneficial use of exercise for mental health, however, is as a natural tranquilizer.