That Immune System Exercise also improves the function of the immune system which can reap rewards from getting fewer colds to preventing cancer. Studies demonstrate that exercise reduces the incidence of a long list of diseases including specific cancers, heart attack, strokes, high blood pressure, diabetes and osteoporosis. The risk of dying from cancer declines sharply as exercise increases. The common comment You're too old to be doing that is really just plain bad advice. On the contrary, elderly people should try to stay active both mentally and physically.
More appropriate advice is Use it or lose it.
In a recent study, an exercise program improved memory and mental function in the elderly after just six weeks. In addition to the immune benefits above, seniors' regular exercise is associated with a lower risk of gastrointestinal hemorrhage. Whatever your age, I hope I have convinced you to think of exercise as integral to your health. Besides, it simply feels good. Previously, the recommendation was 20 to 60 minutes of exercise at least three days a week.