Heart attack Learn about heart attack risk factors, prevention and treatment. How an AED can restart a heart These easy-to-use emergency devices can save lives. The Basics Heart attack symptoms Heart attack 101 Recognize sudden cardiac arrest Warning signs of a heart attack Women and heart attacks quiz More information What to know about cardiac arrest The road to good health after a heart disease diagnosis Why you'll need medicines after a heart attack Make a heart attack action plan Cigarette smoking and heart attack A guide to cardiac rehabilitation Are you at risk for a heart attack? Coming back from a heart attack Preventing a second heart attack Warning for women: Heart attack symptoms can be subtle Related stories