After squatting for a long time, I suddenly stood up, and snowflakes appeared in front of my eyes

When a person is squatting, there is little blood on the legs, and the head leaning forward is particularly congested; When a person suddenly stands up, most of the blood suddenly flows to the leg that is responsible for lifting the body, and at the same time, because of the effect of gravity, the blood in the head is temporarily greatly reduced, forming anemia in the brain, so there is a phenomenon of gold stars in the eyes. However, due to the regulation of the nervous system, the blood vessels in the abdominal cavity constrict, which will press the blood back to the brain, thus quickly relieving the anemia of the brain, so that the phenomenon of gold stars in the eyes disappears immediately.

I feel this way too, but according to my knowledge, this phenomenon can be explained in this way:

When a person suddenly stands up, due to the sudden elevation of the brain position, the heart has not yet reacted, resulting in a sudden lack of oxygen in the brain, and snowflakes will appear in front of the person's eyes.

It would be better if there were experts who gave deeper answers.

It is caused by a temporary lack of oxygen in the brain, and the nerves are compressed when the person squats! Blood transport is slowed down, resulting in a slowdown in blood circulation throughout the body, so that oxygen cannot reach the brain.

No big deal'

It's just that I've been standing for a long time.

You rub your eyes, and after a while, stars pop up.

For a short period of time, the blood supply is insufficient, and the brain is deprived of oxygen.

In a short period of time, the blood supply is insufficient, and the brain is starved of oxygen, so there is no need to worry.

This happens due to the transport of oxygen by the blood.

When a person squats for a long time, the blood is not conducive to the upper flow, so when standing up, it will cause the brain to lack the oxygen transported by the blood, resulting in a lack of oxygen to the brain.

There should be nothing to do, squat down for a long time, and then stand up, in this process, due to the inertia of the blood, it still stays in the lower part, that is, it does not follow the movement of your body and follows closely, so the blood does not reach the brain for the time being, dizziness will appear, and it will be dark in front of you, and it will naturally be good after a while.

Hello, according to what you said, this situation is normal, don't worry about this, it is caused by sitting for a long time or squatting and standing suddenly, dizziness and dizziness caused by temporary cerebral insufficiency, quickly squatting or lying down will be fine.

Like me, I am anemic, eat more steamed dates to supplement, ask the doctor what calcium needs to be supplemented, and I will eat it now!

It's normal, just take a little rest.

After squancing for a long time, I will feel dizzy when I suddenly stand up, is this a precursor to physical problems?

This can be explained by the physical "gravitational force". Blood is also a substance with mass, therefore, it also has gravity. When a person squats, the body's center of gravity shifts downward, and the blood adjusts to a relatively low level of balance - this process is called "compensation", which means that the body adjusts the imbalance in an abnormal state.

When standing up, the center of gravity suddenly rises, and the blood return cannot meet the demand for the amount of blood returned to the heart caused by the rapid rise of the heart level, especially the cerebral blood vessels, the heart must pump blood again after the blood is returned to the cerebral blood vessels. As a result, there is a transient cerebrovascular ischemia, which is manifested by whiteness and dizziness in front of the eyes. This phenomenon will vary from person to person, but if it is particularly severe, it is important to stand up more slowly or hold a support.

Wait until symptoms have resolved (usually for a few seconds, but in some cases it may be longer) before you do your activities.

Because the long-term squatting posture causes the blood vessels in the lower body to be compressed, the blood circulation is not smooth, and when you stand up, the blood will be used, and you will naturally have some dizziness and even black eyes.

Hello. When 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 the phenomenon of black vision.

If you have symptoms of anemia, you need to eat more vegetables and exercise more.

Is there any way to do this**.

Why do I get black when I stand up after squatting for a long time? Whether it was a physical problem or not, now I finally understand.

This symptom is called orthostatic hypotension.

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, but as slowly as possible, so that the blood does not flow too violently, so that the blood supply to the heart can keep up, and this phenomenon will not recur.

Sudden standing up is caused by insufficient blood supply to the brain.

It's a little anemic. Or fast metabolism.

One is that the blood supply is insufficient, and the other is that there is a disease.

Zhao Benshan said that there is a lack of oxygen, not some people are the majority, because the blood is concentrated in the lower body when squatting, and when suddenly standing upright, the blood reflux is not timely, resulting in a lack of oxygen to the brain, so the dizziness and eyes are black, and after a while, the blood circulation is restored.

If the blood pressure is not enough, the blood cannot be instantly put on the brain. It is better to get up slowly, or not to be paralyzed.

1.Problems with blood pressure.

2.Problems with the blood supply to the brain.

When a person is in a squatting position, the lower limbs are flexed, and the blood vessels of the lower limbs are compressed so that the blood is not easy to flow to the lower limbs, and the lower limbs appear to be ischemia.

When a person who has been squatting for a long time suddenly stands up, the blood vessels of the lower limbs are restored to unblocked, and at this time, it is like suddenly opening the floodgates, and the blood will rush to the lower limbs in large quantities, so that the head will not have enough blood, and the brain will not get enough oxygen and nutrition for a while.

The conclusion is that this phenomenon is mostly a normal phenomenon and is not caused by anemia.

1. People with this phenomenon should not squat for a long time, if they have to squat often due to work, they can prepare a low stool in advance to reduce the degree of flexion of the lower limbs;

2. When standing up after squatting for a long time, it is advisable to stand up slowly to reduce the discomfort caused by this; Care should even be taken to clean up the work site to prevent injuries after a brief loss of consciousness and a fall to the ground.

3. It is advisable to participate in more physical exercise to enhance cardiovascular function. Why do people get dizzy when they stand up after squatting for a long time? If you squat on the ground for a little longer, and when you stand up suddenly, you often feel the world spinning and your eyes are full of stars.

This is caused by temporary anemia of the head. When a person is squatting, there are some special cases for the distribution of blood in the body. The first is that the two legs are pressed very tightly, the blood vessels are flattened, and the blood reaching the lower limbs is relatively small; Secondly, because the head is slightly tilted forward when squatting, the blood to the head is relatively more distributed.

When you stand up suddenly, the blood vessels in the lower limbs suddenly release the compression, so a significant part of the blood flows to the lower half of the body.

In addition, blood also has a certain weight in the body, and when you stand up suddenly, the blood flow will also flow to the lower half of the body due to the attraction of gravity and inertia, and the blood distributed to the upper body will be reduced. In addition, when standing up, the head is also upright, and it is more difficult to spurt blood from the heart to the high head.

All of this results in a relative decrease in blood flow to the head. The human brain is the most in need of blood oxygen, and a temporary reduction in blood supply can make people feel dizzy due to temporary cerebral anemia. In addition, due to the decrease in blood in the head, the blood supply to the eyeballs is naturally less, so the phenomenon of dazzling and Venus will occur.

At the same time, anemia and hypoglycemia can aggravate this phenomenon.

It may be anemia, but it may also be because of the fact that after squatting for a long time and standing up, the brain is a little ischemic and hypoxic, and it will be like this, and this is okay.

Anemia is too tired. I've had that happen to me.