How many people can without water

How many people can without water?

The body of an adult is 75 percent composedof water. Since water supports the basic physiological processes in the biological organism and is withdrawn together with the products of vital activity, its stock must be constantly replenished. Physiologists and doctors recommend the use of sufficient amounts of water and call a norm of 1.5 to 3 liters per day, depending on the body weight.

How many people can do without water, independs on its physical activity and temperature of the environment. Having conducted the research, physiologists came to the conclusion that the maximum duration of human existence without water can be up to 10 days. At the same time, the person should lie still in the shade at an ambient temperature of 16 - 23 degrees Celsius. If the temperature rises, the lifetime without water, respectively, will decrease.

How many people can live without water whenhigh air temperature? Scientists claim that at 29 degrees - up to a week, with 33 - not more than five days, at 40 degrees - a maximum of two days. In the desert under the scorching sun, a person unprotected by clothing can die from dehydration in a few hours.

What are the symptoms of dehydration? Dryness in the mouth is the first sign. Urination becomes more rare than usual, and urine acquires a dark yellow color and a pungent odor. Further there is dryness of mucous eyes and a nose, heart palpitations are quickened. In the most severe cases, the body ceases to produce urine at all, consciousness is clouded and physiological death occurs.

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