Numerous studies have allowed scientists to conclude that there are two kinds of stress: eustress and distress. The first type of stress allows a person to mobilize the protective functions of the body, increases vitality and helps to heal from disease. The second type of stress, in contrast, depletes human organism leads to the appearance of pathologies.
According to Hans Selye human body is constantly in a state of stress: "We must not, and is not in a position to avoid stress. Complete freedom from stress would mean death. "
Most people believe that stress makes life difficult, and trying to cope with stress. But they do not realize that the human body reacts to changing conditions and adapts to them. Mechanisms of adaptation to develop as a result of evolution.
There are events in which a person holding voltage during a certain time. In this case, the human body begins to react to stress and prepare for unusual situations.
All the powers of the body mobilizes: pupils dilate, breathing and pulse quickens, the sensation of pain is dulled. At the same physiological processes require energy, temporarily suspended.
Stress allows a person to cope with critical situations. Adult human heart in pumping blood stress is 3-4 times greater than when at rest.
The human body is able to remember the stress response. And if the situation persists, then the habit. Body adapts. General adaptation syndrome involves three stages: the stage of anxiety, stage stability, stage of exhaustion.
Hans Selye formulated the concept of the general adaptation syndrome as follows: "The actions of people in response to stress can be divided into three stages. First, we are worried, then adapt and finally get tired of it."