Dictionary of Human Evolution and Biology

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Cold-induced Vasodilation

Vasodilation that follows vasoconstriction in peripheral areas of the body after exposure to cold. This may represent a compromise in which heat is conserved through initial vasoconstriction, but the skin is kept warm through periodic vasodilation, preventing frostbite. Cold-induced vasodilation occurs among peoples, such as the Sami and (Arctic) Inuit, of northern latitudes. Aka hunting response.

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