Hardening of the body and its significance. OBZhD

BASICS OF SAFE LIFE
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Hardening of the body and its significance. Basics of safe life

Fundamentals of Safe Life Activities (OBZhD)

Hardening of the body increases resistance to adverse weather and climatic conditions (low and high air temperature, low atmospheric pressure, etc.).

Modern comfortable living conditions, clothing, transport and others reduce the impact of changing weather conditions on the human body, reduce resistance to meteorological factors. Hardening is part of physical education and restores this stability.

Hardening of the body is based on its ability to adapt to changing environmental conditions. The hardening effect is achieved by systematic, repeated exposure to one or another factor and a gradual increase in its dosage, since only under these conditions adaptive changes develop in the body, for example, such as neurohumoral and metabolic processes, and the overall resistance to the effects of adverse environmental factors increases. Hardening of the organism is of a specific nature, i.e., it is determined by a gradual decrease in the sensitivity of the organism only to the action of a certain physical factor.

Thus, systematic dosed exposure to cold increases resistance to low temperatures, and thermal exposure to high temperatures. Cold hardening does not predetermine the development of resistance to pressure, etc. When the hardening procedures are terminated, the degree of hardening weakens, usually after 1-2 months, resistance to certain physical factors disappears.

The essence of cold hardening is the gradual increase in the degree of cooling. In people who are accustomed to the cold, heat generation in the body is more intense, which provides better blood supply to the skin and increases resistance to infectious diseases (flu, SARS, etc.) and frostbite. Hardening to cold can be achieved by rational use of the sun, air and water.

At high air temperature, there is a danger of overheating of the body, unusual for it. As a result of repeated and prolonged exposure to heat, resistance to high air temperature increases due to an increase in heat transfer (sweating), the improvement of which in people hardened to high temperatures ensures a moderate increase in heart rate while working in a hot climate, maintaining working capacity at the same level.

To harden the body to low atmospheric pressure, climbing mountains is more often used, staying in them according to the method of stepwise acclimatization.

The hardening mode is set by the doctor, taking into account the age, individual characteristics of the person.

Author: Muradova E.O.

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