That means your body temperature is going down, and your body is trying to warm up. Blake also said that hypothermia can cause a person to lose coordination and concentration, which only compounds things if the person happens to be downhill skiing at the time hypothermia hits. We lose most of our heat out our head. Anything but cotton. Cotton loses all of its insulating properties when it gets wet.
Synthetics are the best.
Regarding frostbite, Blake said it usually starts in the extremities, where blood flow is limited and cold air can circulate most freely. Fingers, toes, cheek bones, ears, and the tip of the nose are the most susceptible. He said the first sign that something is wrong is a tinging numbness, followed by the skin turning hard, white and waxy. It will burn when you get back in the warmth, but if you stay outside you could get deep frostbite. We don't even treat deep frostbite here.