World Stroke Day is celebrated every year on October 29th. The incidence of stroke in China has been “blowing up”. According to the statistics published in the report, the prevalence of stroke in China reached 1.82% in 2012, and it is estimated that there are 10.36 million stroke patients over 40 years old in China. In the 1980s, the epidemiological survey of cerebrovascular disease showed that the national average prevalence rate was 0.27%, while recent screening results show that the national stroke prevalence rate grew at an average annual rate of 7.6% from 1986 to 2012. The growth rate is alarming. Currently, there are a large number of people with high risk factors for stroke, including 266 million people with hypertension, 136 million with diabetes, 200 million with dyslipidemia, 8 million with atrial fibrillation, 350 million smokers, and 70 million obese people. The vast majority of these populations have not been assessed for the risk of stroke, and interventions for various risk factors present in high-risk groups for stroke have not been put in place. Risk factors for stroke 1. Hypertension, whether hemorrhagic or ischemic stroke, is the main independent risk factor. Blood pressure is gradually reduced to below 140/90 mmHg by antihypertensive drugs and low-salt diet. 2, diabetes mellitus, through controlled diet, glucose-lowering drugs, reduce blood sugar to 3.9-6.1mmol/L normal range. 3, heart disease, such as rheumatic heart disease, coronary heart disease. Especially to prevent atrial fibrillation caused by embolism dislodged causing brain embolism. 4, lipid metabolism disorders, very low density lipoprotein, low density lipoprotein is the most important lipoprotein that causes atherosclerosis, high density lipoprotein is anti-atherosclerotic lipoprotein. 5, transient ischemic attack (TIA), TIA itself is a type of ischemic stroke classification, but also can be a precursor or anterior area symptom of cerebral infarction, which should be treated promptly. 6, smoking and alcohol abuse; 7, blood rheology disorders, especially cerebral blood flow decreases when whole blood viscosity increases, in which increased erythrocyte ratio and increased fibrinogen level are the main risk factors for ischemic stroke; 8, obesity, both obesity and overweight are risk factors for ischemic stroke, not related to hemorrhagic stroke. 9, age and gender, age is an important risk factor for atherosclerosis, the degree of atherosclerosis increases with age. 50 years of age or older with the increase in the incidence of stroke, but the author found that the incidence of stroke in young and middle-aged people also increased, can not be ignored. Generally speaking, the incidence of stroke in women is lower than that in men. Therefore, it is necessary to change the poor lifestyle and control the risk factors. In order to avoid stroke and stroke, it is necessary to treat the disease and prevent the disease first.