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What is a heart attack? A heart attack happens when there is a sudden complete blockage of an artery that supplies blood to an area of your heart. As a result, some of your heart muscle begins to die. Without early medical treatment, this damage can be permanent.

Heart attack warning signs vary With a heart attack, every minute counts. Know the warning signs of a heart attack and what to do if you or someone around you experiences the warning signs. Warning signs vary from person to person and they may not always be sudden or severe. Although chest pain or discomfort is the most common symptom, some people will not experience chest pain at all.

For more information, please view the Heart Attack Awareness Factsheet.

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