Recent yawning may be a sign of brain hypoxia, which may be caused by lack of sleep at night, and may also occur when there is prolonged mental tension and stress. If the patient has hypertension, hypertensive encephalopathy may be caused when the blood pressure is too high, and the patient may also experience cerebral hypoxia. If the patient has chronic cerebral blood supply deficiency, it may cause ischemic-hypoxic encephalopathy, and the patient can also cause cerebral hypoxia, which can be treated with oral medications to improve cerebral metabolism, such as oral olanzapine, piracetam and cytarabine. If the patient is older than 50 years old, oral aspirin can also be used to prevent the patient from progressing to cerebral infarction. Patients should be instructed to relax, reduce stress, develop good work and rest habits, sleep and wake up on time, and ensure sufficient sleep time.