Cerebral insufficiency is a local blood supply deficiency in the human brain that causes brain dysfunction. Clinically, cerebral insufficiency is divided into acute and chronic cerebral insufficiency, which is common in the elderly, but with the development of society nowadays, more and more young people also suffer from this disease. The cause of cerebral insufficiency is related to cerebral atherosclerosis. A, the main causes of cerebral insufficiency 1, the main reason is: because of the cervical atlantoaxial joint and cervical 5 cervical 6 joint misalignment, stimulation of the vertebral artery caused by arterial blood lumen narrowing or vascular spasm, through the blood flow is reduced, resulting in the supply of the brain area occurred by insufficient blood supply; 2, hemodynamic disorders, when the blood pressure is reduced, the heart beats out the amount of insufficient blood supply to brain tissue; 3, some causes of increased blood viscosity The change of blood slowness and blood composition can also occur and insufficient blood supply; 4, micro-thrombosis, micro-thrombus, that is, the platelet of atherosclerosis of the arteries, the formation of micro-emboli in the blood flow, with the blood flow to the small arteries and blocking the blood vessels, then there will be a lack of local blood supply to the brain. Second, common treatment 1, first remove risk factors, such as treatment of hypertension, quit smoking, prohibit excessive alcohol consumption, 2, anti-platelet drugs: preferred aspirin, anti-platelet drugs can effectively prevent platelets from coagulating into clots, which is good for blood circulation and conducive to the blood supply to the brain. 3.Anti-coagulant drugs: Anti-coagulant drugs and anti-platelet drugs have the same effect, both can make the blood flow smoothly, increase the blood supply to the brain and reduce the attack of cerebral ischemia. 4.Surgical treatment: If the carotid artery has severe stenosis (more than 70%), carotid endarterectomy or carotid stenting can be used to form a shape. 5, drug treatment: chronic cerebral blood supply deficiency preferred to nourish blood and clear brain particles.