Hydration increases tissue perfusion and thus erectile function.
Thornton
Simon N
SN
D003681:Dehydration; D003924:Diabetes Mellitus, Type 2 / Q000150:complications*; D006801:Humans; D018783:Impotence, Vasculogenic / Q000209:etiology*; D008297:Male; D010410:Penile Erection; D010413:Penis / Q000098:blood supply*; D012307:Risk Factors