May is National Stroke Awareness Month, designated to raise awareness about this silent killer. The annual campaign is actually run by the National Stroke Association, an organizations whose main purpose is to help individuals Save A Life through proper education about stroke. A stroke happens when blood flow to the brain is stopped by a blood clot or a hemorrhage within the brain. The interruption can cause the brain to die piece by piece which affects bodily function and can lead to mobility in the arm, leg or even the mouth. The goal of National Stroke Awareness Month is to inform Americans about the factors, symptoms and preventative measures. The key emphasis of National Stroke Awareness Month is to get people to Act FAST when they believe someone experiences a stroke. Most people don't realize that although stroke is the third leading cause of death in the United States, an estimated 80 percent of strokes can actually be prevented by F.A.S.T.