“Gastroesophageal reflux disease, or GERD, happens when acid from your stomach backs up into your esophagus, the tube connecting your stomach to your mouth.

This digestive disorder affects the ring of muscle between your esophagus and your stomach. This ring is called the lower esophageal sphincter (LES). If you have GERD, you may get heartburn or acid indigestion. Doctors think that some people may have it because of a condition called hiatal hernia. In most cases, you can ease your GERD symptoms through diet and lifestyle changes. But some people may need medication or surgery.”

Web M.D. (WebMD.com/GERD: Symptoms, Causes, Treatments, Remedies for Relief)