If you feel dizzy all the time, if you are an elderly patient with cerebral atherosclerosis and cerebral blood supply deficiency, consider it related to insufficient blood supply to the brain.1. If the brain is in a chronic state of ischemia and hypoxia, the patient will show that he or she always feels dizzy and not awake, and will usually be sleepy, weak, or yawn frequently. For this situation, drugs to improve blood circulation and activate blood circulation can be given orally. If the feeling of dizziness can be significantly improved by taking these drugs orally, it is considered to be caused by insufficient blood supply to the brain. 2. In addition, if the patient has poor sleep quality at night, or the sleep time is relatively short, insomnia and dreaminess, the feeling of dizziness will also occur. It is because the fatigued brain is not rested, caused by brain nerve dysfunction. In this case, the main thing is to adjust the patient’s sleep.