title: [Does physical activity prove or improve health?].
authors.forename: H
authors.initials: H
authors.lastname: Holzgreve
mesh_terms: D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009026:Mortality; D009043:Motor Activity; D053580:Muscle Strength; D010809:Physical Fitness; D004856:Postural Balance; D012307:Risk Factors