For example, when a part of the intestinal wall bulges outward to form an intestinal diverticulum, the intestinal contents will accumulate in the diverticulum and stay there for a long time.

Intestinal diverticulum is more common in wealthy people, because the diet is too meticulous and the dietary fiber intake is insufficient. The most common site of diverticulum is colon.

"Sleep" is not a medical concept, because I rummaged through textbooks and couldn't find its definition.

This makes it difficult to figure out what "bedding" is. From the digestion process of food, after oral chewing and preliminary digestion, food enters the stomach through the esophagus, fully mixes with gastric acid and various digestive juices, then enters the intestine and is excreted through the duodenum, jejunum, ileum, cecum, colon, sigmoid colon and rectum.

In this process, only when it enters the colon, the water in the food residue is absorbed and the residue begins to gather and form, can it be considered that feces begin to form.

Therefore, the so-called feces should be feces accumulated at the end of the colon to be excreted.