Panic can be manifested by fear of blood or hemophobia, difficulty breathing, trembling of limbs, nausea and dizziness, as well as fainting even when watching horror movies with bloody scenes. And the reason for this fear is most likely because the sight of blood is associated with a possible injury and the body naturally tries to defend itself. Ekaterina Demyanovskaya, a candidate of medical sciences, a neurologist at the Gemotest Laboratory, told socialbites.ca.
According to the expert, with strong emotions – fear or horror, the adrenal glands release a large amount of stress hormones into the blood. They act on the vagus nerve, or vagus, which helps regulate unconscious bodily functions, including heart rate and blood pressure.
“Due to nerve irritation, the heartbeat slows and blood pressure drops sharply. As a result, the brain ceases to receive the necessary nutrition and is sufficiently supplied with oxygen. The person experiences a sharp weakness, dizziness, “flies” before his eyes, and if timely measures are not taken, he will lose consciousness, ”the man said.
He noted that a similar situation is called the vasovagal reaction that develops in humans in the course of evolution.
“The mechanism by which the vasovagal reaction occurs is not fully understood, but the sight of blood is believed to be associated with a possible injury. The autonomic nervous system signals a sharp drop in blood pressure so that in a real injury the body does not lose too much blood. Therefore, people with hemophobia often faint, but those with other phobias are less likely to lose consciousness when faced with the object of their fear, ”said doctor Ekaterina Demyanovskaya.
At the same time, the specialist explained that such a fainting is not terrible for health, only the situation in which it occurred can be dangerous. For example, if a person is driving or has no one to support them, they could be injured if they fall.
“For example, in order not to faint at the sight of blood, while taking a biometric for analysis, you should be distracted and not look at the process, but think about unnecessary things. Simple exercises can help prevent a drop in blood pressure: You can squeeze a rubber ball in your hand or alternately stretch and relax your leg and hip muscles. To increase blood flow to the head, you should bend down while sitting in a chair, ”the candidate of science suggested.
He advised that to help a fainted person you need to put him on a flat surface, put a roller under his feet, provide access to fresh air – open a window, unbutton a tight collar. When the victim regains consciousness, it is recommended to seek medical attention.
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