What is Gastroesophageal Reflux Disease (GERD)?
GERD, short for Gastroesophageal Reflux Disease, is a chronic condition where stomach acid and partially digested food flow back into the esophagus, causing irritation and discomfort. This backflow is due to a weakened or malfunctioning lower esophageal sphincter (LES), which normally acts as a one-way valve between the stomach and the esophagus.
