Dizziness can occur with inadequate blood supply to the brain, mainly in patients with inadequate blood supply to the vertebrobasilar artery. If the patient has an inadequate blood supply to the vertebrobasilar artery, signs and symptoms of cerebellar and brainstem ischemia can occur. Patients may present with dizziness, nausea and vomiting, as well as ataxia, balance disorders, dysarthria, dysphagia and choking on water, and some patients may also present with episodes of nystagmus and diplopia. If the patient is young, most of them are caused by mental stress, stress or neurasthenia; if the patient is middle-aged or elderly, most of them are caused by atherosclerosis, and the patient often has hyperlipidemia, hypertension, hyperglycemia and hyperhomocysteinemia, etc. The main treatment is to improve blood circulation and control risk factors. Treatment.