Are you thirsty yet?
D000328:Adult; D000367:Age Factors; D000375:Aging / Q000502:physiology*; D003681:Dehydration / Q000209:etiology / Q000517:prevention & control; D004326:Drinking / Q000502:physiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D013894:Thirst / Q000502:physiology*