Is Your Heartburn Due to GERD or NERD?

Nearly half of the U.S. population has symptoms of GERD (gastroesophageal reflux disease) at least once a month, and 20% have them weekly. But many of them don't get relief from standard acid-reducing medications, and don't have telltale damage to their esophagus. Melinda Beck explains on Lunch Break. Photo: Getty Images.

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