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''Heartburn'' is a medical condition caused by the flow of gastric acid from the [[stomach]] into the [[esophagus]].  It can be treated with [[antacids]], [[H2-receptor blockers]] or [[proton-pump inhibitor]]s; however, suffers are strongly urged to consult a physician for proper diagnosis as sometimes the symptoms of [[angina]] or [[heart attack]] can mimic those of heartburn.

''Heartburn'' is a medical condition caused by the flow of gastric acid from the [[stomach]] (which is lined with protective mucus) into the [[esophagus]] (which does not have the same protective lining).  It can be treated with lifestyle changes, [[antacids]], [[H2-receptor blockers]] or [[proton-pump inhibitor]]s; however, suffers are strongly urged to consult a physician for proper diagnosis as sometimes the symptoms of [[angina]] or [[heart attack]] can mimic those of heartburn.  Also, chronic [[GERD|gastroesophageal reflux]], if untreated, may cause tissue damage (known as [[Barrett's esophagus]]), which if left untreated can be a [[precancerous]] condition.

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