To preserve the life, health and working capacity of people who are in conditions of autonomous survival, water and food are very important.
A person can live without food for several weeks, without water a long existence is almost impossible, especially in hot weather. Food is an important factor in long-term survival when energy and stamina are most needed.
The human need for water with moderate physical exertion is 1.5-2 liters per day. In ideal conditions, a person can live without water for about 14 days. However, the conditions of autonomous survival in which people fall are far from ideal. Therefore, when water supplies are limited and there is a danger of dehydration, the daily rate should be divided into 4-8 servings. You need to drink water in small sips, holding it in your mouth.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.