Hypothermia is a dangerously quick loss of body heat, most common in cold and damp weather at high altitudes or high latitudes—areas with major temperature variations between day and night, or between sun and shade. Symptoms include shivering, disorientation, loss of motor functions, skin numbness, and exhaustion. The best remedy is warmth, shelter, and food; unlike cottons, woolen clothing retains warmth even when wet. Avoid falling asleep; in truly hazardous conditions, you may not regain consciousness. Carry high-energy snacks and drinking water.
© Wayne Bernhardson from Moon Chile, 2nd edition