The lower esophageal sphincter, a muscular ring, acts as a valve at the opening to your stomach. The LES often shuts down as soon as food enters it. The acid generated by your stomach may rise into ...
Verywell Health on MSN
Why am I getting heartburn all of a sudden?
Medically reviewed by Robert Burakoff, MD Key Takeaways Heartburn can be caused by spicy foods, carbonated beverages, and ...
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