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Heart Rhythm Problems Articles

Articles about heart rhythm problems, palpitations, and when to seek care.

Why Is My Heart Racing When I’m Resting?

Why Is My Heart Racing When I’m Resting?

Oct 19, 2026 | Heart Rhythm Problems

It can feel frightening when your heart suddenly starts racing while you are sitting still, lying down, or trying to sleep. Many people describe it as a “fluttering,” “pounding,” or “thumping” sensation in the chest that seems to come out of nowhere. If you’ve ever...