In Aging, Physical Activity, and Health, Roy J. Shephard, one of the world's leading authorities on exercise science, reviews and synthesizes the scientific literature on the physiological changes of aging and how regular physical activity affects the aging process. Shephard's critical analysis features the latest theories on how aging and exercise affect such medical conditions as cardiorespiratory diseases, musculoskeletal diseases, metabolic health, mental function, and general well-being. He provides conclusive physiological evidence that exercise is effective for reducing the risk of many diseases, maximizing independence, and improving the quality of life for the elderly. Shephard also discusses the economic and social consequences of an aging society.