An estimated 20 million Americans have chronic heartburn. About 2 million of these people have Barrett’s esophagus, a precancerous condition that affects the tube that carries food from the mouth to the stomach.
http://www.fhcrc.org/en/news/releases/2013/04/esophageal-cancer-risk-vary-lifestyle-factors.html
Esophageal cancer risk may be reduced through a variety of lifestyle factors –