Patients who smoke a lot of dizziness symptoms, mainly consider the following aspects of the cause: First, if the patient himself exists in the brain arteriosclerosis, cerebral vascular stenosis and other diseases, when smoking a lot of cases, easy to cause patients to cerebral vascular spasm, which led to patients to dizziness, this situation is prone to trigger the patient to appear ischemic cerebrovascular disease, occurring in the acute cerebral infarction; second, because the smoke contains Secondly, because the cigarette contains nicotine this kind of substance, when a large number of smoking these substances will lead to central nervous system anesthesia, so the patient will also show symptoms of dizziness; Thirdly, when the patient smokes a lot of cigarettes, because of the carbon monoxide content in the smoke is relatively high, easy to cause the patient’s red blood cells to carry the ability to decline in oxygen, which leads to the lack of blood supply to the brain, the patient will also show symptoms of dizziness.