As the saying goes: “spring sleepy, autumn fatigue, summer snooze, sleepless winter three months”. By spring, yawning and drowsiness become the expression of many people. Perhaps, we all think this is a normal phenomenon, but for some older people, it may be a precursor to cerebrovascular disease. In 80% of people suffering from ischemic cerebrovascular disease, yawning occurs 5 to 10 days before the onset of the disease. The reason is that middle-aged and elderly people, especially those suffering from hypertension and cerebral atherosclerosis, have reduced blood flow to the brain due to atherosclerosis, narrowing of the lumen, and reduced elasticity of the vessel wall. And the brain is very sensitive to oxygen, when the brain ischemia and hypoxia, that causes frequent yawning, drowsiness. Because yawning can make the pressure in the chest cavity fall, the blood flow back to the heart from the upper and lower vena cava increases, the blood transfusion to the heart increases, and the blood supply to the brain cells improves. However, this improvement is temporary; therefore, frequent yawning often indicates that ischemic cerebrovascular disease may occur in the near future. In addition to yawning, there are other aura of cerebrovascular disease that people should be aware of: sudden vertigo: vertigo is an extremely common symptom of cerebrovascular disease aura and can occur at any time before the onset of the disease, especially in the early morning when waking up. In addition, sudden headache is also an aura and should be taken seriously. Abnormal gait: Stumbling gait and walking leg weakness is one of the aura symptoms of hemiplegia. If there is a sudden change in the gait of the elderly with numbness and weakness of the limbs, it is an aura sign of the occurrence of cerebrovascular disease. Nose bleeding in hypertensive patients: Several large nosebleeds, together with bleeding from the fundus and hematuria, such people may have cerebral hemorrhage within six months. Abnormal blood pressure: When blood pressure suddenly and continuously rises above 200/120mmHg, it is a precursor to the occurrence of cerebral hemorrhage; when blood pressure suddenly drops below 80/50mmHg, it is a precursor to the formation of cerebral thrombosis. If people adopt a healthy lifestyle, actively and effectively control the risk factors of cerebrovascular disease such as high blood pressure, high blood pressure, heart disease, diabetes, etc., and pay attention to reasonable dietary arrangements, increase physical exercise, quit smoking and limit alcohol, and seek medical treatment in time when early warning signals are detected, 3/4 of cerebrovascular disease can be controlled.