Heartburn

Definition

Heartburn is a burning sensation in the chest that can extend to the neck, throat, and face. It usually occurs after eating and is worsened by bending, lifting, or lying down.

Description

Heartburn, sometimes called acid indigestion or gastroesophageal reflux, is very common. More than one third of the population suffers from occasional heartburn, as do about one half of pregnant women. Some 50 million adult Americans complain of frequent heartburn. The occurrence of heartburn generally increases with age; however, it is common—and often overlooked—in infants and children.

Heartburn occurs when digestive juices from the stomach move back up into the esophagus, the tube connecting the throat to the stomach. The upper third of the esophagus consists of skeletal muscle that propels the food downward. The lower...

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