Death from stroke has decreased over the past decade, with stroke now the fifth leading cause of death in the United States. In addition, the incidence of new and recurrent stroke is declining, likely because of the increased use of specific prevention medications, such as statins and antihypertensives. Despite these positive trends in incidence and mortality, many strokes remain preventable. The major modifiable risk factors are hypertension, diabetes mellitus, tobacco smoking, and hyperlipidemia, as well as lifestyle factors, such as obesity, poor diet/nutrition, and physical inactivity. This article reviews the current recommendations for the management of each of these modifiable risk factors.