title: Health and fitness.
authors.affiliation: Department of Medicine, University of Chicago, Illinois.
authors.forename: R B
authors.initials: RB
authors.lastname: Gunderman
mesh_terms: D015438:Health Behavior; D006801:Humans; D006998:Hypochondriasis; D010686:Philosophy, Medical; D010809:Physical Fitness / Q000523:psychology*