Hyperacidity, as known as acid reflux or heartburn, is the irritation of the esophagus that results when acid from the stomach is released into the esophagus. This occurs because of a dysfunction in a muscular valve, known as the lower esophageal sphincter (LES), which normally keeps stomach acid in the stomach. The LES may open too often or it may not close tightly enough, allowing stomach acid to leak through. Acid reflux isn’t a serious medical problem unless it becomes constant and chronic, in which case it becomes GastroEsophageal Reflux Disease (GERD) and requires treatment.  If you follow a few simple steps, you can diagnose acid reflux and learn to treat it naturally.