Physical exercise sharpens the brain.
D000368:Aged; D001921:Brain / Q000502:physiology*; D003071:Cognition / Q000502:physiology*; D015444:Exercise / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010101:Oxygen Consumption; D013997:Time Factors