Why does my heart beat faster and I break out in a cold sweat when I am frightened?

At present, the global Gregorian calendar, the calendar year is based on the "return year" of the earth revolving around the sun, and its length is 365 24 days, that is, 365 days, 5 hours, 48 minutes and 46 seconds, and 365 days are taken as a year for ease of use, so that there are 5 hours and 48 minutes and 46 seconds more per year, and every 4 years is 23 hours, 15 minutes and 4 seconds, so the calendar sets a leap year every 4 years, which increases to 366 days, that is, there is an extra February 29. At the same time, all 100 AD years must be divisible by 400 to be considered leap years, so that there are exactly 97 leap years in every 400 years. In addition, in the traditional lunar calendar arrangement in China, both the sun and the moon should be considered, and the month in the lunar calendar is determined by the length of the period between a "new moon" (astronomically the same moment as the moon and the earth's ecliptic plane) to the next "new moon", which is actually the time for the moon to revolve around the earth, with an average of 29 days, 12 hours and 44 minutes.

Due to the relative movement between the sun, the earth, and the moon, the human nervous system is composed of the central nervous system and the peripheral nervous system, including somatic and autonomic nerves. In the autonomic nerve, there are sympathetic and parasympathetic nerves. When the sympathetic nerves are excited, the heart beats faster, the arterioles constrict, the peripheral vascular resistance increases, and blood flow decreases.

Sympathetic nerve excitation can promote the increase of adrenaline and norepinephrine secretion, and these two hormones have a strong constrictive effect on the blood vessels at the mucosa. At the same time, sympathetic nerve stimulation also increases sweat gland secretion. When a person is frightened, the sympathetic nerves are intensely excited, causing a sudden increase in heartbeat.

Due to the strong constriction of the small blood vessels of the ** and mucous membranes, the blood supply is reduced, which makes the person appear pale. <>

At this time, the brain's response will also be directly implicated in the outpouring of adrenaline, because the brain directly controls thousands of nervesThey will also defend together, which is equivalent to the brain is a general, and the nervous system is a soldier, so at this time, he will send our shield adrenaline as soon as possible. The release of adrenaline is actually a major factor in the rapid heartbeat.

A tiny detail in life actually contains very profound scientific principlesEven a small act of our human body actually contains thousands of cells and tissues to function.

This is because the central nervous system will secrete adrenaline after receiving the danger warning signal, causing the muscles and major organs of the whole body to reach a critical point, increasing the demand for blood, so the heart will beat faster to respond to the blood demand.

When a person is frightened, the nervous system of the brain will make a "stress response" in an instant, and at this time, the human body's adrenaline is automatically guided by the body's internal autonomic nervous system to release a large amount, and adrenaline makes our heart beat faster.

Because the adrenaline rush after a sudden start. The blood flow rate will increase. The heart is the center of blood circulation. A faster blood flow rate makes the heart beat faster, and the heart is overloaded.

In a moment of mental tension, the sympathetic nerves in the autonomic nerves will suddenly excite, and through the action of complex neuroendocrine, the whole body will tremble.

Because people are frightened, their nerves are tight, so they will break out in a cold sweat.

Because this is the body's regulatory mechanism, people will have some reactions when they are frightened.

This is because the physiological properties in the human body protect themselves, so they will break out in a cold sweat.

That's because if you are too nervous, your body will refuse, so you will break out in a cold sweat.

Because this is the reaction of the human body, being frightened, that's why it's like this.

Because the internal organs of our human body are like that, there is nothing special about it.

Because at this time, the sweat glands of the person are rapidly secreting sweat, which is controlled by the nerves.

From the perspective of traditional Chinese medicine, talking in dreams belongs to the vigorous heart fire, that is, hot energy, which can be eaten in the near future to calm the mind and calm the mind, such as lotus seed soup and other food therapy that lowers the heart fire. Moreover, the recent heat and dryness, coupled with your irritability, the symptoms of irritability are more obvious.

From the perspective of Western medicine, it is because the nervous tension comes from life, so that when sleeping, the brain cannot rest completely, and a small part is still working, so it is necessary to regulate life. At the same time, if your symptoms are palpitations, if such symptoms persist for too long, it is recommended to go to the hospital for examination, or see a psychologist, after all, it may also be due to frequent shocks.

Suggestion: When a person is frightened by Yuhe, the mood suddenly becomes tense, which makes the sympathetic nerve strongly excited and the heart beats faster. Due to the strong constriction of the small blood vessels of ** and mucous membranes, the blood supply is reduced, resulting in a pale complexion.

At this time, the secretion of sweat glands also increases, and it will "scare out a cold sweat", especially in the rough forehead, and the "cold sweat of the Qing stool faction" is even more obvious.