During the Fourth of July holiday, my friends were talking about “how could I be paralyzed with a brain hemorrhage without high blood pressure?”. I’m sorry, but I don’t know what to say. Cerebral infarction and cerebral hemorrhage are collectively known as “stroke”, also known as “stroke”, “cerebrovascular accident”, which has become the first cause of death in China, and is also the leading cause of disability among Chinese adults. It has become the first cause of death in China and the leading cause of disability among Chinese adults. Hypertension is the most common risk factor, and controlling hypertension is an important and controllable means of preventing stroke. So, can you still get a stroke if you don’t have a history of high blood pressure? Any factor that causes lesions in the arteries of the brain can be a cause of stroke. In addition to hypertension, common causes: (1) intracranial small vessel lesions: aneurysms, arteriovenous malformations, etc.; (2) systemic arterial inflammatory lesions affecting the cerebral arteries: multiple aortitis (Takayasu’s disease), occlusive thrombophilic vasculitis (Buerger’s disease), nodular arteritis, giant cell arteritis (Horton’s syndrome), systemic lupus erythematosus, etc.; (3) infectious arteritis: leptospirosis, syphilitic spirochetes, fungi, Candida or secondary to septic encephalitis; (4) arterial entrapment lesions: traumatic entrapment aneurysm, Marfan syndrome, pseudoxanthoma entrapment histiocytosis, etc.; (5) congenital cerebral vascular lesions: smoky disease (moyamoya), congenital arteriovenous malformations, congenital aneurysms; (6) a variety of embolisms: rheumatic heart disease with atrial fibrillation Attachment wall thrombus detachment, long bone fracture fat thrombus, gas embolism, cancer embolism and so on. So, how to target the prevention of stroke? Currently, a three-tiered prevention strategy is followed: primary prevention, which includes abstaining from smoking, limiting the amount of salt in the diet, eating plenty of fresh fruits and vegetables, taking regular physical exercise, and avoiding excessive alcohol consumption, can reduce the risk of cardiovascular disease. In addition, medication for diabetes, hypertension and hyperlipidemia is needed to reduce the risk of cardiovascular disease and prevent strokes. Secondary prevention is the early diagnosis and treatment of patients who have had one or more strokes to prevent serious cerebrovascular disease, and the five commonly used antihypertensive medications can be used for secondary prevention of strokes; secondary prevention of cardiovascular disease for those who already have other diseases, such as diabetes mellitus, and the combination of these interventions with smoking cessation often prevents nearly 75 percent of recurrent vascular episodes. Tertiary prevention means strengthening rehabilitation care for those who have already had a stroke to prevent exacerbation of the condition. In summary, a low-salt, low-fat diet, smoking cessation, and maintenance of normal body weight should be used in general to prevent stroke.