It increases the stroke volume, the amount of blood pumped with each heart beat. It decreases the pulse rate, thereby giving the heart more time to rest between beats. It decreases one s risk of death in the event of a heart attack. The lungs are expanded and thus strengthened to supply fresh oxygen to the entire system. Perhaps the most important benefit is that of increased circulation.
Exercise invigorates the mind.
Digestion is aided, a diseased stomach is relieved, and the bowels are strengthened for correct elimination. Impurities are expelled from the system. The skin expels impurities that otherwise would have to be expelled by the excretory organs, and the skin is given a healthy glow. These are all very important to the body, but they tend to be general effects. Even walking at a leisurely pace of three miles per hour, five times a week, raises HDL cholesterol.