Survival skills
Water
A human being can survive an average of three to five days without the intake of water. The issues presented by the need for water dictate that unnecessary water loss by perspiration be avoided in survival situations. The need for water increases with exercise. Since the human body is composed of up to 78% water, it should be no surprise that water is higher on the list than fire or food. Ideally, a person should drink about a gallon of water per day. Many lost persons perish due to dehydration, and/or the debilitating effects of water-born pathogens from untreated water.
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