Ask the doctor: How to slow a racing heart
Coughing or gagging may help slow a very rapid heartbeat caused by supraventricular tachycardia. Known as vagal maneuvers, these techniques work by stimulating the vagus nerve, which runs from the brain to the abdomen.
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About the Author
Deepak L. Bhatt, M.D., M.P.H, Former Editor in Chief, Harvard Heart Letter
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