Aging and the aged in contemporary society.
D000368:Aged; D000375:Aging; D002302:Cardiac Output; D002908:Chronic Disease; D003731:Dental Caries; D004063:Digestion; D004064:Digestive System / Q000201:enzymology; D005260:Female; D006801:Humans; D007109:Immunity; D007668:Kidney / Q000098:blood supply; D008019:Life Style; D008297:Male; D008875:Middle Aged; D009017:Morbidity; D009431:Neural Conduction; D012039:Regional Blood Flow; D012119:Respiration; D012679:Sense Organs / Q000502:physiology; D012725:Sexual Behavior; D013312:Stress, Physiological; D014655:Vascular Resistance