What to know about heart palpitations
An unusual heartbeat may get your attention, but often it's nothing to worry about.
- Reviewed by Howard E. LeWine, MD, Chief Medical Editor, Harvard Health Publishing; Editorial Advisory Board Member, Harvard Health Publishing

Have you ever noticed that your heart seems to be beating differently? Maybe it happens when you’re stressed or nervous — for example, right before you give a big presentation. Those irregular heartbeats are called heart palpitations. They’re quite common — in fact, they’re among the top reasons people see their primary care provider or even a cardiologist.
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About the Reviewer
Howard E. LeWine, MD, Chief Medical Editor, Harvard Health Publishing; Editorial Advisory Board Member, Harvard Health Publishing
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