Stroke is a leading cause of death and disability in this country, affecting more than 700,000 people a year. But although most people know when to call 911 for the symptoms of a heart attack, too many people ignore the early warning signs of a stroke. New advances can greatly reduce the impact of a stroke, but only if treatment is undertaken within the first few hours. Guests: Ana Felix, MD, Director, Assistant Professor in the Department of Neurology at the University of North Carolina, Chapel Hill Brad Worrall, MD, Assistant Professor of Neurology and Health Evaluation Sciences at the University of Virginia Stroke Center