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Understanding Chest Burning Sensations
March 31st, 2026

What Causes a Burning Feeling in Your Chest?

A burning sensation in your chest typically stems from acid reflux, where stomach acid flows back into the esophagus. This occurs when the lower esophageal sphincter weakens or relaxes inappropriately, allowing acidic stomach contents to irritate the esophageal lining. Gastroesophageal reflux disease (GERD) affects approximately 20% of Americans and is the most common cause of chest burning. Other potential causes include muscle strain from coughing or heavy lifting, anxiety-related chest tightness, or rarely, heart conditions. The burning usually worsens after eating spicy foods, lying down, or bending over, and may be accompanied by a sour taste in your mouth or difficulty swallowing.

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