title: Physical activity, health, and well-being at different life stages.
authors.affiliation: School of Physical and Health Education, University of Toronto, Ontario, Canada.
authors.forename: R J
authors.initials: RJ
authors.lastname: Shephard
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D002648:Child; D002675:Child, Preschool; D015444:Exercise / Q000502:physiology / Q000523:psychology; D015438:Health Behavior; D006801:Humans; D008875:Middle Aged; D010809:Physical Fitness; D011788:Quality of Life