Primary prevention (etiological prevention): 1, adhere to physical activity, exercise can dilate blood vessels, accelerate blood flow, and reduce blood viscosity and platelet aggregation, reducing thrombosis. Exercise can promote lipid metabolism and increase the content of high-density lipoprotein cholesterol in the blood, which can prevent atherosclerosis. People who exercise regularly have a significantly lower chance of suffering a stroke. 2, control diet Enjoy a low salt (within 6g per day), low fat and low calorie diet, simple dietary pattern food-based, consisting of vegetables, fruits, beans, fish, coarse rice or flour rich in unsaturated fatty acids, carotenoids, vitamin E can reduce the risk of stroke. 3, quit smoking and limit alcohol Smokers have two times the risk of stroke than non-smokers. The risk of stroke increases significantly when the daily ethanol content of alcohol exceeds 60g. Ethanol can cause stroke by raising blood pressure, causing blood hypercoagulation, arrhythmia and reducing cerebral blood flow. 4, maintain a good lifestyle Regular health check-ups, self-adjustment of work stress and psychological tension, and efforts to achieve a balanced psychological and regular life. Regularly measure blood pressure, blood lipids, blood sugar and weight to detect risk factors early and take preventive and control measures early.