What is a heart attack?

The phrase "heart attack" is often used non-specifically to refer to myocardial infarction. An MI is different from—but can cause— cardiac arrest, where the heart is not contracting at all or so poorly that all vital organs cease to function, thus might lead to death.

Where can I find information about a heart attack?

PMID 33677098. American Heart Association's Heart Attack web site — Information and resources for preventing, recognizing, and treating a heart attack. "Heart Attack". MedlinePlus. U.S. National Library of Medicine.

What are the warning signs of a heart attack?

A heart attack is an emergency. Learn the warning signs of a heart attack. The signs can include: Crushing chest pain or pressure and/or discomfort or pain elsewhere in the upper body, neck, or arms If you or someone you know might be having a heart attack, call 9-1-1 right away.

Can a heart attack cause sudden cardiac arrest?

A heart attack can cause sudden cardiac arrest. Most heart attacks are caused by coronary artery disease. Your age, lifestyle habits, and other medical conditions can raise your risk of a heart attack. Symptoms of a heart attack include chest and upper body pain, shortness of breath, dizziness, sweatiness, and nausea.