The best prescription money can't buy. Conflicting recommendations on exercise obscure the main message: just do it.
D000367:Age Factors; D015444:Exercise / Q000502:physiology*; D006801:Humans; D018482:Muscle, Skeletal / Q000502:physiology; D005082:Physical Exertion / Q000502:physiology; D010809:Physical Fitness / Q000502:physiology; D013997:Time Factors