There is little point in trying to out distance every one else, for even at a slow pace, the time between huts is seldom in excess of 6 hours. Drink at least 3 liters of fluids each day. Dehydration, even mild, leads to a thickening of the blood with increased possibility of pulmonary embolism or a thrombosis. Urine colour should be pale and the output copious. Or more correctly, hypothermia, is the lowering of the body s core temperature.
Prevention is the best course of action.
Use appropriate equipment. Do not allow oneself or ones clothing to become wet either from rain or perspiration. When at rest, keep out of the wind. Treatment is simple and needs to be carried out as quickly as possible. If a hut or natural shelter is not close by, a tent, bivi bag or similar protection should be arranged to keep the victim dry.