Dynamic Cooling - When your body temperature increases, blood vessels near the surface of the skin dilate, increasing blood flow to the skin, leaving less blood and oxygen for the muscles. When there is not enough blood to remove lactic acid from the muscles, the body hits a wall and fatigues.&nbsp; Remaining cool during exercise allows blood oxygen levels to remain high throughout the body which makes exercising much more efficient and pleasant. Sweating is also dramatically reduced or completely eliminated. Cooling the body during the workout mitigates further physical stress and reduces existing pain and inflammation.