Acid reflux, or gastroesophageal reflux disease (GERD), occurs when stomach acid flows back into the esophagus, causing symptoms like heartburn, chest discomfort, and a sour taste in the mouth. Chronic acid reflux can result in esophageal inflammation and damage, as well as complications such as asthma or a persistent cough. Lifestyle adjustments, such as avoiding trigger foods, eating smaller meals, and sleeping with the head elevated, can often help manage symptoms and reduce recurrence.
