title: Maintaining fitness keeps you sharp in old age. Men who decrease their physical activity after age 70 have greater mental decline than men who stay active.
mesh_terms: D000368:Aged; D003072:Cognition Disorders / Q000517:prevention & control*; D015444:Exercise / Q000502:physiology* / Q000523:psychology; D006801:Humans; D008297:Male; D013997:Time Factors