Why are we dizzy when getting up so fast?

Getting up too fast and then dizzy, with bright spots like the dancing star in front of you is relatively common, happening to most people. So what is the cause of this phenomenon?

According to experts, it all involves a lack of blood flow when we get up so fast.

Normally, blood flows to and from the heart, circulating throughout the body. So when we stand, the blood from the right legs fights gravity to reach the heart. But when sitting, that doesn't happen.

When we change our sitting posture, then stand up too fast, the heart cannot regulate the extra pumping, making the blood pressure drop within a fraction of a second. And this moment of rapid change has immediately affected our eyes, reducing the amount of oxygen and sugar that the blood provides for the retina - the eye area responsible for detecting light.

At this point, the retina starts to emit unusual light signals, tricking the brain into thinking that you are seeing light spots when they do not exist there.

However, we should not worry because this is not a disease manifestation. The dizziness only takes a moment, before the heart can adjust blood pressure to normal.

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