Insufficient blood supply to the cerebral arteries may cause unpleasant sensations. The human brain relies on blood to obtain “nutrients”, and when the blood supply to the cerebral arteries is less than the normal demand, some unpleasant symptoms will occur, such as dizziness, headache, sleep disorders, blurred vision, nausea, vomiting, limb weakness or stiffness, etc. Narrowing of the blood vessels, obstruction of the blood flow and the lowering of the heart’s pumping function and other factors can occur in the cerebral arterial blood supply. When cerebral arterial blood supply insufficiency occurs, active intervention and treatment should be carried out according to the original disease, such as controlling the blood pressure if it is caused by hypertension, giving medication to control the treatment of cerebral vascular stenosis and surgery if necessary, and improving the treatment of heart function if it is caused by cardiac insufficiency. When there is insufficient blood supply to the cerebral arteries, we should go to the hospital in time to find out the cause of the disease and treat the cause.