Stroke is the No. 3 cause of death in the U.S. and the leading cause of disability.

Although stroke is more common in people over age 55, everyone is at risk, particularly if you have a family history of the condition.

Just what is a stroke? There are two types: hemorrhagic and ischemic. Ischemic strokes, in which a blood clot blocks the vessels to the brain, account for about 85 percent of all strokes.

Understanding your risk factors and focusing on prevention are essential to surviving a stroke without lasting damage. Take our stroke risk assessment to learn what you can do now to stop a stroke before it strikes.