Essential exercise: physical and mental health "inextricably" linked.  Major disease prevention is shown to be an additional benefit.
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000544:Alzheimer Disease / Q000517:prevention & control; D015444:Exercise / Q000502:physiology* / Q000523:psychology*; D005260:Female; D006331:Heart Diseases / Q000517:prevention & control; D006801:Humans; D008019:Life Style; D008297:Male; D008603:Mental Health; D008875:Middle Aged; D009765:Obesity / Q000517:prevention & control; D010024:Osteoporosis / Q000517:prevention & control; D011322:Primary Prevention; D055815:Young Adult