In the physiological state, patients with poor sleep and plant nerve dysfunction are prone to symptoms such as headache, dizziness, dizziness and memory loss. In addition, patients with hypoglycemia caused after starvation will also experience headache, dizziness and blurred vision. This is because there is less glucose stored in the brain, and when hypoglycemia occurs, the lack of energy in brain tissue will cause headache, dizziness and blurred vision. If elderly people have frequent dizziness, headache and blurred vision, most of them are caused by high blood pressure. Some people have elevated blood pressure and they do not feel it, and the performance is dizziness, dizziness, headache and unstable walking, etc. It is necessary to take blood pressure measurement in time and adjust blood pressure actively. In addition, the elderly can also suffer from the above symptoms due to insufficient blood supply to the brain, and need treatment to improve blood supply.