Water is one of your most urgent needs in a survival situation. You can't live long without it, especially in hot areas where you lose water rapidly through perspiration. Even in cold areas, you need a minimum of 2 liters of water each day to maintain efficiency.
More than three-fourths of your body is composed of fluids. Your body loses fluid as a result of heat, cold, stress and exertion. To function effectively, you must replace the fluid your body loses. So, one of your first goals is to obtain an adequate supply of water.
译文:
求生的特殊技能--探寻生命之源
在生死关头之际，水是您最紧急的需求之一。您无法在缺水的情况下存活下来，尤其是在炎热的地区里，汗水会使您快速流失水分。 即使身在寒冷地区，每天也至少需要 2 公升的水以保持体能。
身体中，有超过四分之三的成分是液体，且这些液体会因为炎热、寒冷、压力和行动而流失。为了使身体有效运作，您必须替补身体所流失的液体。因此，您的首要目标之一就是取得足够的供水量。