Brain attack stroke is a medical emergency that affects over 795,000 Americans each year. It is the third leading cause of death and the leading cause of adult disability in the US. Stroke is treatable if emergency medical services are contacted within 3 hours of symptom onset to quickly transport the patient to a primary stroke center for diagnosis and treatment. Recognizing the signs of stroke using the FAST acronym and calling 911 immediately can help save brain tissue and potentially limit disability from stroke.