TED-Ed: Rusha Modi: What causes heartburn?

The video explains the role of the lower esophageal sphincter (LES) in preventing heartburn, a common digestive issue. It describes how heartburn occurs when the LES malfunctions, allowing stomach acid to enter the esophagus. Various factors like diet, smoking, and obesity can trigger heartburn. If untreated, it can lead to serious conditions like Barrett’s esophagus. Treatments include lifestyle changes and medications. The video emphasizes prevention through diet and healthy habits.

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