Nervous and hormonal mechanisms in the aging process.
D000375:Aging; D000818:Animals; D005260:Female; D012739:Gonadal Steroid Hormones / Q000502:physiology; D006728:Hormones / Q000502:physiology; D006801:Humans; D008297:Male; D009043:Motor Activity; D009119:Muscle Contraction; D009133:Muscular Atrophy / Q000209:etiology*; D009410:Nerve Degeneration; D009468:Neuromuscular Diseases / Q000209:etiology; D051381:Rats
D012739:Gonadal Steroid Hormones; D006728:Hormones