PAF causes strong contractions—especially in the muscles of the esophagus and the stomach’s upper region (called the gastric fundus). In other parts of the intestine, such as the small intestine and ...

This figure shows how a substance called PAF (platelet-activating factor) affects the muscles in different parts of the digestive tract in rats. Panels A–F show the muscle movements in six regions: ...

Motility disorders are conditions that affect the movement of food and waste through the digestive tract. There are many types of motility disorder and they can impact any part of the digestive tract, ...

According to the scientific literature, drinking coffee is beneficial for the gut health. It helps improve bowel movement by increasing the motility of smooth muscle in the gastrointestinal tract.