Mayo Clinic Healthcare expert explains why reflux disease isn't `just' heartburn

LONDON — Gastroesophageal reflux disease is one of the most common digestive disorders in the world. It happens when acid comes up from the stomach into the esophagus: The stomach can resist acid but the esophagus is less acid-resistant. James East, M.D., a gastroenterologist at Mayo Clinic Healthcare in London, says reflux disease may be common, but there can be severe complications if it is ongoing and left untreated. Heartburn is a key symptom of reflux disease, but…
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