First turkey, then a "fart walk." Experts explain why, after eating your Thanksgiving meal, consider taking a stroll instead ...

The subject swallows a mouthful of barium sulfate, which is then propelled down the esophagus and into the stomach by a peristaltic contraction wave.

Achalasia is primarily caused by the degeneration of the myenteric plexus in the esophageal wall, leading to impaired ...