Cerebral blood supply insufficiency suggests not to drink alcohol, cerebral arterial blood supply insufficiency when the patient may appear headache, dizziness, serious cases may appear sleep disorders, if drinking alcohol will lead to the aggravation of this symptom. Alcohol has a slight vasodilator effect, may lead to peripheral vasodilatation of the brain, cerebral blood perfusion is insufficient, aggravating the symptoms of cerebral hypoperfusion; often drink will lead to endothelial damage, aggravate the progress of cerebral atherosclerosis, so that the symptoms of cerebral hypoperfusion aggravated; patients with cerebral hypoperfusion often drink will also lead to alcohol poisoning, serious cases caused by alcohol poisoning encephalopathy. Patients with cerebral hypoperfusion should not drink alcohol, but also quit smoking, do not stay up late, to change the original bad habits, and actively engage in physical exercise, such as obvious symptoms of headache and dizziness should be early medical care.