American Heart Association. Mission: Lifeline Stroke A stroke won't wait. Neither should you. Know the signs of a stroke at strokeiowa.org. Act F.A.S.T. to save a life. F.A.S.T. Arm Speech Time to Face Drooping Weakness Difficulty Call 911 American Heart Association . Mission : Lifeline Stroke A stroke won't wait . Neither should you . Know the signs of a stroke at strokeiowa.org . Act F.A.S.T. to save a life . F.A.S.T. Arm Speech Time to Face Drooping Weakness Difficulty Call 911