Dizziness and poor memory may be caused by chronic ischemic-hypoxic encephalopathy due to insufficient blood supply to the brain. Patients mainly present with dizziness and poor memory, and may have poor concentration and slow thinking, mostly in middle-aged and elderly people, mainly due to atherosclerosis. Patients may have a combination of diabetes and hyperlipidemia. Clinically, the main treatment is to improve blood circulation, improve brain metabolism and control risk factors. The main drugs commonly used to improve cerebral metabolism are Olacitant and Piracetam; the main drugs to improve blood circulation are Shuxin, Vibramer and Pertamidine and Vertigo Stop. In addition, the control of risk factors is mainly to control blood sugar and blood lipids. Clinically, the commonly used blood lipid-lowering drugs are mainly simvastatin, resulvastatin and atorvastatin, and the blood sugar-lowering drugs are mainly metformin, regeneronide and bactrim. If you are a young person, it may also be caused by long-term mental tension, stress or long-term smoking and drinking, you should relax, reduce the pressure, quit smoking and avoid alcohol, it may also be caused by long-term head down to look at the phone, play computer, usually reduce the time to look at the phone, play computer.