I sat for a long time, my eyes were black, my head was dizzy, and I once fainted directly on the gro

Many people have this experience: after squatting for a long time and then standing up suddenly, they will feel dizzy and dark. The main reason for this phenomenon is temporary anemia in the brain.

When a person is squatting, the waist and legs are twisted and turned, and the blood cannot flow up and down. If you stand up suddenly at this time, the blood will flow down quickly, resulting in local ischemia in the upper body, but the brain and eyes have particularly strict requirements for oxygen and nutrients, and they must not be slackened. If you are already weak, the situation is more serious.

However, don't panic when this happens, and you don't have to go to the hospital. If the blood supply to the head is insufficient, the heart will immediately work hard to pump blood up, and it will not take long for the body to return to normal. Of course, when standing up, don't move too hard, try as slowly as possible, so that the blood does not flow too violently, and the blood supply to the heart can keep up, and this phenomenon will not occur.

It is estimated that the blood pressure is low, so don't be too violent when you pay attention to it in the future.

It is a sudden lack of blood supply to the heart and brain.

Note: Get up slowly

Inadequate blood supply to the brain. Cerebral insufficiency is a decrease in blood flow to the brain. Some patients will suddenly feel dizzy, spinning, afraid to open their eyes, nausea and vomiting, and know in their hearts that they can move their limbs, but they dare not move.

Some patients were sweaty and pale, describing themselves as having a "feeling of dying." These symptoms can last for seconds, minutes, or hours before resolving on their own. Some have seizures several times a day or once every few days.

After the doctor's examination, if the blood pressure is not high, there is no heart disease, and there are no other abnormalities of the nervous system, the diagnosis is insufficient blood supply to the brain. If you don't want to go to the hospital, first of all, you should strengthen physical exercise, exercise is an effective way to enhance blood circulation throughout the body and improve cerebral insufficiency, such as walking, jogging, tai chi, etc. Secondly, a lot of hyperlipidemia is:"Eat"out, and therefore targetedly"Eat", high blood lipids are also expected to come down.

When hyperlipidemia is in the primary stage, that is to say, cardiovascular and cerebrovascular diseases such as hypertension and heart disease have not been found, especially young people and menopausal women, it is completely possible to adjust blood lipids by changing lifestyle and dietary conditioning, such as controlling the intake of high-fat and high-calorie foods, eating more whole grains, vegetables and fruits, quitting smoking and limiting alcohol, and insisting on exercise. (1) Reduce fat intake. Eat less animal fats, such as lard, pork, butter, sheep, cow, duck, goose, etc.

This kind of food has too much saturated fatty acids, fat is easy to be deposited on the blood vessel wall, increasing the viscosity of the blood, saturated fatty acids can promote cholesterol absorption and liver cholesterol synthesis, so that the serum cholesterol level increases. If too much is consumed, triglycerides can rise, accelerate blood clotting, and promote thrombosis. (2) Limit cholesterol intake.

Avoid foods high in cholesterol, such as organ meats, egg yolks, fish roe, squid, etc.

Many people have this experience, after squatting for a long time and then standing up suddenly, they will feel dizzy and black. The main reason for this phenomenon is temporary anemia in the brain.

When people squat, the waist and legs are bent, the blood can not go up and down, if you stand up at this time, the blood will flow down quickly, resulting in local ischemia of the upper body, but the brain and eyes have particularly strict requirements for oxygen and nutrients, and they must not be slackened at all. If the body is already weak, the situation will be more serious.

However, don't panic when this happens, you don't have to go to the hospital, the blood supply to the head is insufficient, the heart will immediately work hard, busy pumping blood, and it won't take long for the human body to return to normal. Of course, be careful not to move too violently when standing up, as slowly as possible, so that the blood does not flow too violently, and the blood supply to the heart can keep up, and this phenomenon will not occur.

This is a phenomenon of anemia, and there are many kinds of anemia such as iron deficiency anemia or others, and anemia is very harmful to the future, especially when you get pregnant and have a child in the future. You have to go to the hospital for a good check-up, and replenish your body through diet and conditioning medicine. I'm also the same as you, I'm always black and weak in front of my eyes, and once I even fell to the ground for a long time and couldn't stand up, but I often fainted and had an experience to prevent falling, you don't want to prevent it, every time I get dizzy, I squat down quickly, and then stand up after calming, so that I won't faint.

Anemia or hypoglycemia is something that should be advised to go to the hospital... But the landlord doesn't have to worry too much, I and my classmates around me are like this six or seven out of ten (girls), of course, it's best to go to the hospital!!

Have you taken your blood pressure when your blood pressure is low Plus it's so hot now.

When a person is squatting, the lower limbs are flexed. At this time, the blood vessels of the lower limbs are compressed, and the blood is not easy to flow to the lower limbs, and the lower limbs will be in a slight ischemic state, and they will feel numb after a long time. When you suddenly stand up after squatting for a long time, the blood vessels in the lower limbs suddenly return to unblocked, as if the floodgates have been opened suddenly, and a large amount of blood will rush to the lower limbs.

The amount of blood produced by a person in a certain period of time is certain, and a large amount of blood rushes to the lower limbs, so that the blood in the head is not enough, and the brain does not get enough oxygen and nutrients for a while, so most people will have dizziness, heartbeat, and black vision. After the body adapts and adjusts, this phenomenon disappears quickly in most people. Therefore, most of this phenomenon is a normal physiological phenomenon, and it is not a disease such as anemia.

Anaemia. When I sit down, the blood circulation is relatively low, and when I stand up suddenly, the blood does not enter the brain, so I am temporarily dizzy.

After sitting for a long time, the back is in a state of being squeezed, and suddenly standing up to return to its original shape, the blood of the body will also flow to the back, and then the brain will have a short period of blood, resulting in dizziness due to insufficient oxygen supply for a few seconds.

Generally, normal people do not often have this condition, and if you stand up easily, it is easy to get dizzy, then there is a problem with blood pressure.