After squatting for a long time, I feel black in front of my eyes when I stand up

I believe everyone has had this experience: squatting for a long time and then suddenly standing up, your eyes will go dark and you will feel like you are going to faint at any time. Some people may suspect that they have some serious disease due to this symptom, but most people will ignore this condition, thinking that they only have temporary anemia and will be fine after a rest. However, this situation is not just anemia, there are other reasons. Let's take a look.

Orthostatic hypotension ≠ anemia

Feeling dizzy when standing up after squatting for a long time is a transient state of hypotension caused by changes in body position. The symptom occurs when the blood pressure is too low, resulting in insufficient blood supply to the brain. This is completely different from anemia! It is medically called orthostatic hypotension, or postural hypotension.

This is mainly because when people squat or sit for a long time, their waist and legs are bent and blood cannot circulate up and down. When a person stands up suddenly, the pressure on the blood vessels in the lower limbs is relieved at once, and blood from the whole body quickly flows to the waist and legs. This causes ischemia in the upper body, especially the head, resulting in temporary lack of blood supply to the brain. Because the brain and eyes have particularly strict requirements for oxygen and nutrients and cannot relax at all, even a brief lack of blood supply can cause them to malfunction, thus causing a feeling of blacking out and dizziness.

Orthostatic hypotension is generally more likely to occur in children, frail women, elderly people, and patients taking certain special medications. But this does not mean that orthostatic hypotension means that the body is weak and unhealthy.

Be alert if you have dizziness, blacking out of your vision, and other symptoms

Although most people will experience darkness in front of their eyes when they stand up after squatting for a long time, it is mostly because of the momentary lack of blood and oxygen in the brain. A few people may also experience the same symptoms due to brain diseases such as brain tumors, cerebral infarction, cerebral thrombosis, or arteriosclerosis causing insufficient blood supply to the brain.

If you feel dazed and dizzy after getting up, and also have a severe headache, nausea, or even trembling hands and feet, these symptoms are different from normal and it is recommended that you consult a professional doctor or undergo further examination.

How to prevent orthostatic hypotension?

1. When squatting and standing up, it is best to maintain a relatively slow speed and not stand up too quickly to allow the body time to react. It not only gives the brain time to react, but also avoids many accidents such as bumps and collisions.

2. In case of cold, fever, diarrhea, drinking, etc., you should pay more attention and replenish water in time. Although dizziness and vertigo seem to have no direct relationship with water replenishment, in fact, when the human body is adequately hydrated, the blood circulation rate can be accelerated. Especially in the hot summer weather, it is easy to sweat. If the body loses too much water and is not replenished in time, it will directly affect the speed of blood circulation.

Light Hydrogen Water

3. If you are taking antihypertensive drugs, sedatives or other medications, you should be more careful and it is best to lean on something for support when standing up to avoid sudden fainting and falling.

4. You should exercise more and strengthen your physical fitness to improve your immunity. You also need a balanced diet.

3 correct methods for emergencies

1. Panic will make people more likely to lose their balance and fall, which is a taboo. You should try to stay calm and lower your center of gravity;

2. If you are wearing tight clothes, you can loosen the belt and buttons first. Relaxing will help you return to normal.

3. Do not move suddenly after returning to normal. It is best to stand up slowly after steadying yourself with your hands.