title: Concerning the estimation of biological age.
abstract: The conditions which must be satisfied by an index of biological age are discussed, and a high correlation with chronological age is shown to be neither a necessary nor a sufficient condition to be satisfied by any such index.
mesh_terms: D000328:Adult; D000368:Aged; D000375:Aging; D001794:Blood Pressure; D002318:Cardiovascular Diseases / Q000453:epidemiology; D002784:Cholesterol / Q000097:blood; D006801:Humans; D008017:Life Expectancy; D008433:Mathematics; D008875:Middle Aged; D008954:Models, Biological; D012306:Risk
chemical_list: D002784:Cholesterol