Secondary prevention, control the source of ischemic stroke 1, strict control of risk factors causing ischemic stroke risk factors are: high blood pressure, high cholesterol, diabetes, heart valve disease, heart rhythm disorders (atrial fibrillation), etc. 2, change bad habits bad habits are: high cholesterol, high sugar, high salt diet; smoking; alcohol abuse; lack of exercise, etc. Secondary prevention measures 1, improve the control rate of hypertension and 2, antiplatelet therapy (aspirin) 3, treatment of high cholesterol (statins) 4, treatment of heart disease 5, control of blood sugar 6, quit smoking and limit alcohol 7, weight control 8, physical exercise