About Arrhythmia An arrhythmia is an abnormal heart rhythm. Learn about the heart's structure and why abnormal heart rhythms may cause problems. Read more.
Why Arrhythmia Matters When arrhythmias are severe or long-lasting, the heart may not be able to pump enough blood to the body. Find out why arrhythmias are important to treat.
Understand Your Risk for Arrhythmia Arrhythmias can occur in nearly anyone, becoming more common as we age. But some factors may place people at greater risk. Find out your risk and what you can do to live your healthiest.
Prevention & Treatment of Arrhythmia Most arrhythmias are considered harmless and are left untreated. If your arrhythmia needs treatment, learn about possible options and how to reach your treatment goals.
Arrhythmia Tools & Resources Visit our resources page to sign up for newsletters, download additional information sheets, and read stories from people who have made inspiring life changes.