Analysis of the condition: Cerebral blood supply insufficiency is a syndrome of cerebral vasospasm and cerebral blood flow reduction caused by various reasons, which leads to cerebral ischemia and hypoxia. Typical symptoms include dizziness, headache, memory loss and drowsiness, which suddenly appears when the head leans back or suddenly turns to one side. It can be treated with Sibiling capsule, and Danshen Maitong has a good effect. Pay attention to keeping warm in cold weather and try to eat low-salt and low-fat diet. Suggestions: Second, increase nutrition and eat some tonics that are beneficial to regulating blood pressure, such as ginseng, astragalus root, and pulse-activating drink. In addition, drinking some low-alcohol wine can also be mentioned. Third, strengthen physical exercise and improve the body's regulatory function. Physical exercise is good for both low blood pressure and blood pressure. Fourth, in order to prevent dizziness, elderly patients with hypotension should pay attention to not moving too fast and too hard at ordinary times, and should move slowly when standing up from a lying position or a sitting position. Patients with micturition hypotension should also pay attention to the fact that it is best to hold something solid with your hands when urinating to prevent falling.