Stress is a response to a variety of psychophysical tasks emotional, cognitive or social perceived by the person as excessive.
The term stress was used for the first time in 1936 by Hans Selye who described him as "nonspecific response of the body to any request made to it." Depending on the model of Selye, stressful process consists of three phases:
1 - alarm phase: the subject indicates the excess of duties and mobilizes resources to fulfill them;
2 - phase resistance means the person, his condition stabilizes, and adapts to new content requests;
3 - phase of exhaustion at this stage there is the fall of defenses and the subsequent onset of physical symptoms, physiological and emotional.
The stressful life event stress leads to distinguish two categories: acute stress, occurs only once and in a short period of time, and chronic stress, ie when the stimulus is long-term. Chronic stress can be further divided into chronic intermittent stress and chronic stress proper. The first occur at regular intervals, are limited, and are therefore more or less predictable. The latter are represented by long-term situations that affect the existence of a person and become stressful when they are a constant obstacle to the pursuit of their goals. In addition to durability, it is also important to the nature of stressors. We can have benefits stressors, such eustress, giving vitality and tone the body and harmful stressors such distress that can lead to a lowering of immune defenses.
Stress can be caused by:
- Life events both pleasant and unpleasant (eg marriage, birth of a child, death of a loved one, divorce, retirement, sexual problems);
- Physical causes: the cold or intense heat, smoke and alcohol abuse, severe loss of mobility;
- Environmental factors: the lack of accommodation, noisy, polluted determinants of a certain state of stress;
- Organic disease: when the body is suffering from an illness, the entire body in an attempt to defend himself, is in a state of tension that, in most cases, the few defenses can make, results in a stress condition;
- Cataclysms.
The term stress was used for the first time in 1936 by Hans Selye who described him as "nonspecific response of the body to any request made to it." Depending on the model of Selye, stressful process consists of three phases:
1 - alarm phase: the subject indicates the excess of duties and mobilizes resources to fulfill them;
2 - phase resistance means the person, his condition stabilizes, and adapts to new content requests;
3 - phase of exhaustion at this stage there is the fall of defenses and the subsequent onset of physical symptoms, physiological and emotional.
The stressful life event stress leads to distinguish two categories: acute stress, occurs only once and in a short period of time, and chronic stress, ie when the stimulus is long-term. Chronic stress can be further divided into chronic intermittent stress and chronic stress proper. The first occur at regular intervals, are limited, and are therefore more or less predictable. The latter are represented by long-term situations that affect the existence of a person and become stressful when they are a constant obstacle to the pursuit of their goals. In addition to durability, it is also important to the nature of stressors. We can have benefits stressors, such eustress, giving vitality and tone the body and harmful stressors such distress that can lead to a lowering of immune defenses.
Stress can be caused by:
- Life events both pleasant and unpleasant (eg marriage, birth of a child, death of a loved one, divorce, retirement, sexual problems);
- Physical causes: the cold or intense heat, smoke and alcohol abuse, severe loss of mobility;
- Environmental factors: the lack of accommodation, noisy, polluted determinants of a certain state of stress;
- Organic disease: when the body is suffering from an illness, the entire body in an attempt to defend himself, is in a state of tension that, in most cases, the few defenses can make, results in a stress condition;
- Cataclysms.
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