FIGHT THE COLD
Know the signs.
Shivering, clumsiness, and numb skin are early signs of hypothermia. When shivering stops and stumbling begins, things are serious.
Remove wet clothes, add dry layers, and get out of the wind. Wrap yourself in a sleeping bag or tarp with hot water bottles.
Exercise to raise your core body temperature. (Stay away from rocks and ledges if clumsiness is severe.)
Feed the shiver.
Keep the furnace fueled with quick-burning carbohydrates and warm drinks.
Mental confusion and apathy are the most dangerous symptoms of advanced hypothermia. Warming can take hours, so be patient and keep fighting.