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This is because you can't quickly leave blood to the brain when you sit for a long time, and the blood vessels are rapidly congested when you stand up, which may lead to death, so be careful in the future.
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When you stand up suddenly, your blood pressure in your brain will suddenly rise, so you will feel dizzy and you can't see.
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It's normal, and most people have it, and it's caused by a lack of blood supply.
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The blood is on your head, blocking your eyes.
Symptoms of anemia, standing up and not enough blood supply.
When you sit on the couch, your anus and perineum are covered by soft cushions, and if you sweat in the heat, it will stink even if you don't fart.
Couch, stand up, eyes, twitch couch, stand up, eyes, twitch couch, stand up, eyes, twitch.
First, maybe you don't sit well or the sofa doesn't fit your body shape (this is unlikely), the second is anemia, is it your own problem, or the third is the quality of the sofa.
This is that you are too anxious when you stand up, resulting in insufficient blood supply to the brain, resulting in dizziness and blackness in front of your eyes, I don't believe you will stand up next time and slow down.