Heart Health: Sudden Cardiac Arrest Risks

You may think the most common single cause of death in the United States is heart attack. Or cancer. Or stroke.

But it’s actually sudden cardiac arrest (SCA). SCA is a problem with your heart’s electrical system (usually called ventricular tachycardia or ventricular fibrillation).

Most SCA victims survive if they get help very quickly. But SCA is fatal 95% of the time.

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