Frequent yawning may be a physiological response to exertion or a harbinger of cerebrovascular disease, and it is recommended that people with the disease go to the neurology department of a hospital for a clear diagnosis. Yawning is a physiological phenomenon of self-protection of the organism, through which the excessive carbon dioxide in the organism can be discharged out of the body, and at the same time increase the amount of oxygen inhalation, so as to alleviate the symptoms of cerebral ischemia and hypoxia. Excessive fatigue, frequent sleep deprivation, and work stress may cause insufficient rest for the brain, which may be manifested as frequent yawning, poor mental state, and poor concentration. If the related symptoms still exist after improving the living habits, and accompanied by drowsiness and other symptoms, clinically it is usually considered to be related to the lack of oxygen in the brain caused by cerebrovascular disease, and it is recommended that people with the disease should go to the Department of Neurology in the hospital for a head MRI or craniocerebral CT and other tests to make a clear diagnosis.