There's a lot of good news on the cancer front these days. People with the disease are living longer. There are more cancer champions in the United States than ever before.
Then there are some types of this horrible disease that are on the increase, and esophageal cancer is one of them. It's been on the rise since the 1970s.
We wondered why and ran into some interesting - and surprising - findings.
Most think the increasing incidence of a particular type of esophageal cancer is probably tied to obesity....