First, because the process of shaking will produce a certain stimulating effect on the cerebral blood vessels, because when the brain is shaking left and right or back and forth, the blood flow state in the brain will change to produce a certain expansion of the cerebral blood vessels, but also stimulate the sympathetic nerves in the walls of the blood vessels or the inner membrane of the blood vessels, causing nerve excitation will appear when the head shakes on dizziness This phenomenon. Second, because of elevated blood pressure, because shaking the head will cause the brain to regulate blood pressure dysfunction, causing a temporary increase in cerebral blood pressure, elevated cerebral blood pressure can stimulate the cerebral blood vessels, indirectly leading to increased intracranial pressure or brain nerve dysfunction, there will be dizziness in this situation.