Insufficient blood supply to the brain is insufficient blood supply to the brain, is a common disease in neurology, cerebrovascular ischemic disease. Insufficient blood supply to the brain can be found in the cerebral blood vessels to slow down the blood flow, the patient appears dizziness, headache, memory loss, and in severe cases, numbness of the limbs, weakness, speech clumsiness, etc., and the symptoms can be relieved after treatment in general. For cerebral blood supply insufficiency is mostly caused by atherosclerosis, due to the poor elasticity of blood vessels, resulting in slowing down the blood flow rate, brain cells lack of oxygen patients can appear symptoms of neurological deficits. Secondly, cerebral blood supply insufficiency is also clinically seen due to cardiac causes, such as premature heart beat affects the blood supply of the heart and affects the cerebral blood supply insufficiency as well as coronary artery disease, etc., which leads to the reduction of cardiac ejection, and the patient can also have the symptoms of cerebral blood supply insufficiency. For cerebral blood supply insufficiency, we should actively find out the cause of the disease, and at the same time, we should give treatment for the cause of the disease. If the patient is atherosclerosis caused by insufficient blood supply to the brain, the patient should be given to fight against atherosclerosis drugs orally, if necessary, can be taken orally to protect the lining of the blood vessels, and can be taken orally to improve the circulation of the drug.