“Chronic reflux is more common in overweight and obese people. A lot of gastric acidity refluxing up into the esophagus can damage the inner lining of the esophagus,” Wong said. “Changes in the lining can lead to a condition called Barrett’s esophagus; any changes can ultimately lead to cancer.”
http://www.pennlive.com/bodyandmind/index.ssf/2014/08/esophageal_cancer_rates_on_the.html
Esophageal cancer rates on the rise