1. Heartburn is a burning sensation behind the breastbone. Unlike the name says heartburn has absolutely nothing to do with the heart. It is problem caused by the digestive system. The main type of heartburn is called Angina. It is caused by temporary shortage of oxygen being carried in the blood to the heart muscle. Heartburn occurs when small amounts of acid rise up into the esophagus. Unlike the stomach the esophagus does not have an extra lining in it so when it is exposed to acid it becomes painful and inflamed. …
