What is postural hypotension?

A lot of friends have encountered this kind of situation: crouching long, suddenly stand up and feel dizzy, leg hair tingling, before the eyes a black or become hazy, sometimes even dizzy.Some people think they may be anaemic or hypoglycemia, but is that really the case?

If it is only a short time after a long period of time, the symptoms can be called orthostatic hypotension or postural hypotension in medicine.Postural hypotension is one of the most common causes of dizziness, due to changes in body position, such as low blood pressure caused by a sudden shift from squat to erect, or prolonged standing.

When we are crouching, we want to get up and stand, we need to coordinate and cooperate with each organ of the body, besides the bones and muscles, we also need to participate in the heart, blood vessels, nerves and so on.

When the human body crouch, the waist and leg are tortuous, the blood cannot be unblocked up and down.If suddenly suddenly stood up, blood got rapid flowing downwards, upper body caused by ischemia, cerebral transient oxygen supply is insufficient, especially the head ischemia, temporary blood, brain and eye causing dizziness happened, blacked out, then makes his head spin.Most of the postural hypotension is caused by autonomic dysfunction, so as long as the position changes are not urgent, there is no need for special treatment.

How to avoid postural hypotension

1. When you get up, get up slowly and use the help, such as holding the chair and getting up again.

When you wake up in the morning, don't overdo it, but stay in bed for a few minutes, do some mild limb movements, and slowly change your position.

3. Eat a reasonable diet, supplement the nutrition, avoid overeating or hunger, not drinking.

4. Insist on proper physical exercise, enhance physical fitness, and ensure adequate sleep time.

Avoid fatigue, standing long, and squatting.

Some people need to pay attention to body weak, especially in old people get up for an instant dizziness, standing up from the sofa when dizzy, giddy wait for a phenomenon, when got up the toilet for people with high blood pressure, high blood pressure are not directly cause, but also has certain influence, need adjust drug use.

Squatting or sitting for a long time, don't get up and move slowly.Don't panic when you have an erect hypotension and a black eye.When the head is undersupplied, the heart will get the order, and then the work will be stepped up, and the blood will be sent up immediately, and within seconds, we will be back to normal.But if dizziness is severe, it is suggested to squat back to the original position to avoid the collapse of dizziness, and more trauma.When the sensation of dizziness slowly lightened, then slowly rose.