A fit and healthy man has been diagnosed with stage four esophageal cancer after being prescribed over-the-counter heartburn medication for acid reflux. Forty-one-year-old Zack Van Aarde later ...

Esophageal cancer is relatively rare, making up only 1% of all cancer diagnoses in the US. However, it is also one of the most deadly cancers — with a five-year survival rate of only 20%.