Discover why GERD without esophagitis causes severe symptoms despite normal endoscopy results. Learn 8 hidden mechanisms ...

An illustration of a magnifying glass. An illustration of a magnifying glass.

Your sleep position can cause everything from back pain to acid reflux. A simple change can improve your health dramatically.

An illustration of a magnifying glass. An illustration of a magnifying glass.

The symptoms of strep throat include a sore, swollen throat. A person may also have white patches or small red spots in the throat, fever, swollen tonsils, or swollen glands. Strep throat is a ...

It's a win-win, and it's why everything on iStock is only available royalty-free — including all Esophagus images and footage. What kinds of royalty-free files are available on iStock? How can you use ...