Peripheral Vasoconstriction in fingers demonstrated using Infrared

What Is Peripheral Vasoconstriction?

This physiological response has been mentioned so many times that I decided it needed its own specific post to plug into the Cold Water Swimming articles section. What is peripheral vasoconstriction? Following¬†immersion in cold water, blood flow is reduced in human limbs and skin. Why does peripheral vasoconstriction happen? Peripheral vasoconstriction occurs to allow the…