Cerebrovascular disease refers to ischemic or hemorrhagic lesions of brain tissue caused by various diseases of the blood vessels in the brain, including atherosclerosis, cerebral thrombosis, stenosis, occlusion, and cerebral artery injury, which cause disability or death of patients. The prevention of cerebrovascular disease is divided into three levels. Primary prevention refers to the prevention before the onset of the disease, that is, through changing unhealthy lifestyles and actively controlling the risk factors for the onset of the disease, so as to achieve the purpose of not occurring or delaying the occurrence of cerebrovascular disease. The main points include the following: 1. Avoid excessive fatigue and mental stimulation, and maintain emotional stability. 2. Control diet, adjust diet structure, eat less and more meals, regular rationing, eat more fresh fruits and vegetables, and eat more foods that lower blood lipids and soften blood vessels, such as black fungus, onion, celery, tomatoes, etc. Eat less fatty food such as fatty meat, animal fat, animal offal, cream, etc. 3. Exercise moderately, spread your legs, and exercise moderately. 4. Quit smoking and drinking, and combine work and rest. 5. Keep your bowels clear, constipation can make blood pressure rise suddenly and induce cerebrovascular disease. The main purpose of secondary prevention is to prevent re-occurrence of cerebrovascular accidents and reduce the degree of disability. It includes early detection, early diagnosis and early treatment, which mainly refers to patients who have already had cerebrovascular disease and achieve stroke prevention by controlling micro-risk factors, which is very important in young patients. Risk factors such as hypertension, diabetes mellitus, hyperlipidemia, and obesity disease should be actively prevented and treated. Tertiary prevention: Active treatment after the onset of cerebrovascular disease to minimize neurological deficits and prevent complications, reduce the occurrence of disability and prevent recurrence, mainly including symptomatic treatment and rehabilitation therapy.