Exercise and leanness improve sex lives of men.
D000368:Aged; D000369:Aged, 80 and over; D007172:Erectile Dysfunction / Q000209:etiology / Q000517:prevention & control*; D015444:Exercise; D005500:Follow-Up Studies; D006801:Humans; D008019:Life Style; D008297:Male; D008875:Middle Aged