What causes dizziness?

Dizziness largely occurs when a person, who has been moving around with speed, stops suddenly. The sensitive liquid in the inner ear, which controls our body balance, continues to move around for some time even after the body has stopped moving. So the surrounding appears to us to be still in motion. But it takes only a few seconds for the body to get normal. Some people suffer from vertigo which is the fear they experience while looking down from a height or aboard a ship. This is caused by nervous reactions which affect the fluid in the inner ear.