Exercise and aging.
D000368:Aged; D000375:Aging; D000818:Animals; D002320:Cardiovascular Physiological Phenomena; D002319:Cardiovascular System / Q000201:enzymology; D006128:Growth; D006801:Humans; D008136:Longevity; D008660:Metabolism; D010179:Pancreas / Q000502:physiology; D005082:Physical Exertion; D051381:Rats