1) Slows down the effects of aging
Science shows that exercise not only makes you feel younger but makes you stay young longer. As you exercise, you slow down the rate at which the telomeres on your chromosomes are shortening. Telomeres are caps on the end of your chromosomes that shorten in length as you grow older. Studies have shown that exercise reduces the pace at which they get shorter.
2) Strengthens your bones
Weight-bearing workouts such as running, walking, and jumping have been known to ward off osteopenia (loss of bone density) and osteoporosis (weak, brittle bones)
3) Your brain needs it.
After a rigorous exercise, your brain releases endorphins, which typically make you feel great afterward. But these endorphins are also instrumental in maintaining mental sharpness and improving your concentration. Exercise also stimulates the growth of new brain cells.
4) Maintains your metabolism
Regular exercise not only improves bone density but also dramatically improves one's muscle density and suppleness. Muscle is the calorie-hungry engine in the human body that keeps your metabolism humming.
5) Keeps cardiovascular diseases at bay
Regular exercise not only makes you stronger, but it strengthens your heart and makes it more efficient. A consistent exercise routine improves the efficiency with which your heart pumps blood. Your heart will do less work as it gets vital blood throughout your body.