Summary
Acidity or heartburn is a very common phenomenon often experienced by many people globally irrespective of their gender and age groups. It is mainly detected because of a distinctive burning sensation inside the chest and nearby regions. Sometimes it also causes irritation and burning in the upper abdomen along with mild to moderate pain. Research strongly suggests that one of the major causes of acidity is acid reflux. Acid reflux is the action of stomach acids reversing back into the esophagus (food pipe).