What causes people to faint

summary

Fainting is an extremely common disease. The blood supply to the brain is temporarily or suddenly reduced. You should not take it lightly when you encounter this symptom. It is usually caused by the turbid and sultry air in your place. Second, it may be that the emotion is stimulated. In addition, because diet or lead to lower blood sugar, or standing for a long time, will cause sudden syncope. What causes people to faint? Let's talk about it.

What causes people to faint

First, if the patient appears pale or gray, frequent yawning, face, neck and hands sweating, this is the precursor of brain hypoxia.

Second: if someone complains that they are about to faint, ask them to sit down, loosen their neck and waist clothing, belt, and let their head drop to their knees. If the patient's speech is different from that of ordinary people and shows abnormal behavior, he should be sent to the hospital immediately for treatment.

Third: if the patient has syncope, should raise the patient's feet, make the feet higher than the head, in order to accelerate the blood circulation of the brain. Patients usually regain consciousness quickly, but they need to be checked for injuries to their body or head when they fall.

matters needing attention

If the standing time is too long, in order to avoid fainting, you can take turns to rest the left and right feet, or gently shake between the heel and toe.