Non-intervenable Among the many risk factors for stroke, age, gender, family history, and race are non-controllable.1 Age: is the strongest single risk factor for stroke, and all are non-intervenable. The incidence of stroke prevalence prevalence and mortality both increase in a log-linear relationship with age. About 30% of strokes occur before the age of 65, and 70% after the age of 65. 2, gender: before the age of 50, the incidence of men is significantly more than women, after the age of 50 there is no significant gender differences. 3, family history: many scholars now believe that the genetic factors related to stroke disease belongs to polygenic inheritance, and its genetic causes are more influenced by environmental factors. Our survey shows that people with a history of stroke in their immediate family have more chances of suffering from stroke, and family genetic factors have a very significant significance.4. Race: A lot of data show that the incidence of stroke is higher in blacks than in whites. The incidence rate in Asia (China, Japan) is higher than that in Europe and the United States. Can intervene The most important intervenable risk factor is hypertension, followed by smoking. Heart disease and hyperlipidemia. History of stroke and transient ischemic attack (TIA) are also important intervenable risk factors. Other factors include: diabetes, alcohol abuse, oral contraceptives and obesity, diet, and lifestyle.