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Print: What is heartburn?
Despite its name, heartburn doesn't affect the heart. Heartburn is a burning feeling in the lower chest, along with a sour or bitter taste in the throat and mouth. It usually occurs after eating a big meal or while lying down. The feeling can last for a few minutes or a few hours.
Heartburn
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Written by familydoctor.org editorial staff
Reviewed/Updated: 07/10
Created: 11/96
