Fainting is a short -term loss of consciousness in response to a strong internal or external stimulus. The blood flow to the brain decreases sharply, and the body moves from the active regime to the supporting. This condition lasts from a few seconds to three minutes and can have a variety of reasons.
1
About half of all fainting are nasal. They come from sudden fright, severe pain, overwork, hunger, stress, stuffiness in the room or type of blood. If you have suffered more than once with such a fainting, try to avoid the situation that provoke it.
2
Ortostatic fainting is a consequence of a large physical activity or a sharp change in body position. Loss of consciousness can occur in almost any person with too intense training. In adolescents and elderly people, a temporary “disconnection” of the body has been observed at those moments when they were in one position for a long time, for example, sitting and then suddenly stood up. With a tendency to this, a sufficiently serious type of fainting, you need to undergo an examination (ordinary and daily ECG, test with physical activity, ultrasound).
3
Pathological fainting occurs against the background of some diseases. With bronchial asthma, bronchospasm limits the supply of oxygen to the head, with diabetes, the patient can “disconnect” due to the missed injection of insulin or its excess, with epilepsy, the fainting is caused by a convulsive seizure. In addition, loss of consciousness is one of the symptoms in the diagnosis of a stroke, myocardial infarction, hypertensive crisis. Inxication of the body alcohol, narcotic substances or drugs also leads to fainting. In these cases, medical care is required.
4
Fortunately, the loss of consciousness does not happen too quickly, a person manages to feel a deterioration in a state. The characteristic features are as follows:
the head is spinning;
there is weakness throughout the body;
nausea arises;
darkens in the eyes, flies can flicker;
lays ears or a ringing is heard.
5
Having recognized unpleasant symptoms, try to avoid fainting. If at this moment you are in a small stuffy space (elevator, public transport), cross your legs, and then rhythmically tighten the muscles of the hips and press. Thus, blood flow to the brain will increase, which will help prevent loss of consciousness. On the street, with impending fragrant, put one leg on the hill or sit on the knee, as if straightening the laces.
The fainting of it is familiar to every fifth person, however, such reactions of the body should be attentive. If the loss of consciousness occurred once or twice, and at the same time external stimuli were clearly observed, there are no special reasons for concern. But when the situation is repeated repeatedly for no apparent reason, you need to contact doctors and undergo special diagnostics.
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