Gonadal senescence in the male.
D000328:Adult; D000368:Aged; D000375:Aging; D004032:Diet; D006707:Homes for the Aged; D006798:Housing; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000503:physiopathology; D005082:Physical Exertion; D012907:Smoking; D013312:Stress, Physiological / Q000503:physiopathology; D013737:Testis / Q000254:growth & development*; D013739:Testosterone / Q000097:blood*
D013739:Testosterone