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What Are Heart Sounds and How to Know If They’re Normal

Heart sounds are the noises made as blood moves through the heart with each heartbeat. When the heart valves close, they make a distinct lubb-dupp sound. Healthcare providers listen to the heart's ...

What it means when your heart suddenly races mid-workout: ‘It can show up unexpectedly during a run…’

If your heart suddenly shoots up to 150–170 bpm during exercise or even at rest, doctors say it could be supraventricular ...