Heart Burn Apr 2026

: Unlike the stomach, the esophagus lacks a protective lining against acid and pepsin. Chronic exposure damages the mucosa and submucosa, triggering pain through deep-seated sensory nerves.

: Normally, the lower esophageal sphincter (LES) acts as a seal. If this muscle becomes loose or relaxes inappropriately, acid can leak through. HEART BURN

: A condition where symptoms persist despite a normal endoscopy and even when acid suppression therapy fails. It is often linked to esophageal hypersensitivity , where the nerves in the esophagus are overly sensitive to even physiological (normal) levels of acid. Distinguishing Heartburn from Heart Attacks Heartburn or heart attack: When to worry - Mayo Clinic : Unlike the stomach, the esophagus lacks a

Heartburn is a painful, burning sensation in the chest or throat, typically caused by stomach acid backing up into the esophagus. This "deep" dive into the condition covers its physiological mechanisms, variations, and critical distinctions from more serious health issues. Physiological Mechanisms If this muscle becomes loose or relaxes inappropriately,

: Patients have typical symptoms but no visible esophageal damage during an endoscopy.