My daughter crouched down and got up and it was dark! What is the reason?

The main thing is that the moment you stand up, the blood is not so fast to keep up with the speed at which you stand up, resulting in a lack of blood in the head, so you will be dizzy and black, etc.

That's how people usually do.

People with good physique don't feel it as strongly. People with weak constitutions can even faint. But landlord, your situation is normal, don't worry!

As for the solution, it's okay if you don't stand up so quickly after crouching.

It's okay, it's just that the blood pressure needs to be saved to the brain, the eyes can't react, it's normal, I often had this kind of thing when I was a child, children, the brain is not fully developed. If you're really worried, go to the hospital for a check-up.

It may be anemia or hypoglycemia.

I can tell you unequivocally that the cause is anemia! Me too! After squatting for a long time, you will be dizzy the moment you stand up!

Go to the hospital to check if it is hypoglycemia?

Analysis: Hello, according to what you said, it is caused by your low blood pressure or anemia, when you stand up, the blood is not compressed in the popliteal fossa, and the lower limbs flow more, causing insufficient blood supply to the head, and blackening in front of the eyes.

Suggestions: Suggestions; When you stand up, you can stand up slowly, and you can also go to the hospital to test the blood routine to see if there is anemia, and measure your blood pressure to see if it is good.

After squatting on the ground for a long time, when you stand up suddenly, there will be a burst of blackness in front of you, which is a situation that many people have encountered, and even some people stand up suddenly, dizzy and can't stand, and fall to the ground all of a sudden. This situation is because people have been squatting for a long time, and then suddenly stand up, the height of the human body suddenly changes from low to high, and the blood cannot reach the head so quickly, which will cause insufficient blood supply to the head, causing cerebral ischemia and hypoxia, resulting in blackening in front of the eyes, and even fainting.

If a person squats for a long time, he will feel that his feet are numb, and if he suddenly stands up, he will feel dizzy for a while, his eyes are black, and some people are weak, and he may not be able to stand, this is because people's blood circulation relies on the contraction of heart blood vessels and gravity. If a person squats for a long time and suddenly stands up, his height suddenly becomes much higher, at this time, the blood can not reach the relatively high head at once, the head will be ischemia, resulting in hypoxia, and people will be dizzy, especially those who usually have low blood pressure, anemia or weak physique.

If a person's usual blood pressure will be low, and there is anemia, or a person who is weak, then the blood circulation of this kind of person is not good enough, and the blood supply to the brain is not enough. If the normal body is better, then the blood circulation will be very vigorous, so squatting for a long time will not cause blackness and dizziness

Because sudden black fainting is still harmful to the body, and it is very uncomfortable, which will affect life and work, therefore, if we usually squat for a long time, do not stand up suddenly, but stand up slowly. For those who are weak, it is especially important to take care of their bodies as soon as possible, and to pay attention to all aspects of their lifestyle to prevent the aggravation of their condition.

This phenomenon is due to the fact that when people are squatting, the blood circulation will be blocked due to the posture of the body, if the squatting time is too long, the blood circulation will be worse, this is when the human person stands up, because the pressure of the blood vessels is relieved, the blood circulation returns to normal, and the blood circulation of the upper body will accelerate to all parts of the body, this situation will occur.

When I squatted up, the reason for the blackening in my eyes was the lack of qi and blood, and there may be anemia, so it led to this situation, and I usually had to eat more things to replenish blood.

This is because the brain suddenly does not supply oxygen, as for why there is no oxygen supply, it is mainly because of poor physical fitness and lack of exercise.

This is caused by the buttocks pressing on the blood vessels in the legs, resulting in insufficient blood supply to the brain, so there is a darkening of the eyes.

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.

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.

It's because after squatting for a long time, the blood flow of the body will slow down in one position. If you stand up violently at this time, due to the effect of high and low blood pressure, the blood flow in the upper part of the body will be accelerated, resulting in an increase in the blood pressure difference between the brain and the eyes, so that people's eyes will be dark.

Note: If this symptom is caused by poor blood circulation in the body, you squat down and suppress the blood circulation, and when you stand up, it will be dark in front of you, and after a few minutes! It was back to normal.

I have had a similar experience before, as soon as I stood up, it was dark in front of my eyes, and my body also had a brief uncontrolled phase, as if I was going to faint, and I had to hold on to something to ease down before I recovered, saying that it was mainly because of the lack of calcium in the body that it would lead to this.

Because after squatting for a long time, the legs will have ischemia due to the squeezing of the blood vessels, and when you stand up suddenly, the blood circulation system will transfuse a large amount of blood to the legs, resulting in insufficient blood supply to the brain, so there is a dark phenomenon.

Because the blood of the human body has a certain weight in the body, when it is necessary to stand up, due to the excessive force, the person will feel dizzy and the eyes will be black.

Because you have been squatting for a long time, the blood in your body is not circulating. The blood supply to the brain is insufficient. Just stand up and take a second or two.

So when you stand up, it's pitch black in front of you.

And if you squat for a long time, your feet will be numb, and I personally recommend that you don't squat for a long time for anything, you can take a small bench and sit down. If you go to the toilet, try not to play with your phone.

After squatting for a long time and standing up, it was pitch black in front of me, because the blood supply to the brain was insufficient. So try not to wait long.

This is a typical cerebral insufficiency caused by insufficient blood supply, when you stand up suddenly after squatting for a long time, the nerve conduction to the brain is sluggish due to the lack of blood, so it will return to normal when the eyes are dark.

After squatting for a long time, when you stand up, your eyes are pitch black: the reason is that the blood cannot immediately rise to the top of the head and distribute the eyes as you stand up. Therefore, the eye is temporarily ischemia, and the eyes are selected to be pitch black.

People have been squatting for a long time. This puts pressure on the arteries and veins in the legs, causing poor blood flow. Suddenly stood up. All the blood goes to the legs. Resulting in insufficient blood supply to the brain. That's why it's pitch black!

Because I have been squatting for a long time, due to gravity, a large amount of blood rushes to the lower limbs, and I stand up violently, and my brain is deprived of oxygen and ischemia, so when I stand up, it is pitch black in front of me.

Squatting for a long time, because the center of gravity of the body moves downward, the blood accumulates in the sagging part of the body, when standing up, the center of gravity of the body moves up, but the blood does not have time to ** the head, there will be insufficient cerebral blood supply, causing dizziness and blackness in front of the eyes. Therefore, you should be slower when you squat for a long time.

After squatting for a long time, the blood in that person's body is insufficient, and if you don't reach that head, you don't have enough blood pressure to feel that the meeting is dark, dizzy, this feeling.

Squatting for a long time will cause blood vessels in the legs to compress the blood flow and poor circulation in the legs. This is the case when you stand up.

Anemia, hypoglycemia, many people now have this disease, and it is severe, and I should be genetic, and everyone in my family has this condition, so it is more serious.

Fainted a few times.

Iron deficiency anemia should be caused by vitamin C deficiency.

If you have low blood sugar, you can keep some sugar in your pocket, which is normal, and many people have this condition, which should be normal.

A little anemia, is it low blood pressure?? Anemia is ruled out first.