1. Transient cerebral blood supply insufficiency caused by blood reduction. When people sit for a long time, the lower limbs are oppressed for a long time, which leads to the downward flow of blood, squeezing and hindering, and even gathering in a certain place, which makes the legs feel numb after standing up. And when people get up, yes? Intercept? Our blood will flow down quickly in an instant. At this moment, the blood is like opening a floodgate, which is large and rapid. Therefore, there will be a situation where there is not enough blood in the heart and brain but too much blood flows down, so people will feel dizzy after getting up, which is a phenomenon of instantaneous ischemia of the heart and brain vessels.
Second, the phenomenon of anemia will be more obvious. If ordinary people get dizzy after sitting for a long time, then anemia may be more obvious and serious. People with anemia are not rich in hemoglobin. If they sit for a long time, the situation will get worse because of insufficient blood supply to the brain after getting up, and serious problems such as dizziness, tinnitus, palpitations and even fainting will occur. Therefore, people with anemia should gradually slow down after getting up for a long time, giving cardiovascular and cerebrovascular diseases a time to return and buffer.
Third, people with low blood pressure are more likely to get dizzy when they get up. People with low blood pressure are prone to dizziness. If you sit for a long time and get up quickly, the arterial pressure will be lower, and the simple dizziness will be upgraded to weakness, palpitation, and even shock and fainting. Therefore, people with low blood pressure should pay great attention to it after sedentary.
These are the reasons why you will feel dizzy after staying in a squatting or sitting position for a long time. I wonder if your friends understand? If you have any other comments, please leave a message. Let's study together.