Why do you feel dizzy when get up suddenly?

When you stand up suddenly, gravity causes blood to pool in your legs and feet. This can lead to a drop in blood pressure and a decrease in blood flow to your brain, which can cause dizziness.

Normally, your body compensates for this by constricting blood vessels in your legs and increasing your heart rate. However, if you stand up too quickly, your body may not have time to make these adjustments, and you may experience dizziness.

Other factors that can contribute to dizziness when standing up suddenly include:

* Dehydration

* Anemia

* Low blood sugar

* Certain medications

* Heart conditions

If you experience frequent dizziness when standing up suddenly, it is important to see your doctor to rule out any underlying medical conditions.