What happens when you stand up to quickly?

When you stand up too quickly, your body may experience a sudden drop in blood pressure, known as orthostatic hypotension. This can lead to dizziness, lightheadedness, or even fainting as the brain temporarily receives less blood flow. The body usually compensates by constricting blood vessels and increasing heart rate, but if this adjustment is slow, symptoms can occur. It's important to rise gradually to allow your body to adapt to the change in position.