Cryotherapy is a technique where liquid nitrogen is used to expose the body to extremely cold temperatures. This treatment lasts anywhere from 1-3 minutes, is dry, and noninvasive. This hyper cooling causes an acute physiological response that includes cutaneous vasoconstriction and shivering thermogenesis, which respectively decrease heat loss and increase metabolic heat production. In combination, vasoconstriction and shivering operate to maintain thermal balance when the body is losing heat. This mechanism has been proven to have substantial health benefits.