Biologists say the appendix isn’t useless after all. Evolution kept reinventing it, and it may help support gut immunity and ...

Why do humans have an appendix? New research is reshaping our understanding of this overlooked organ and its antiquated role in our biology.

The human appendix, a narrow pouch that projects off the cecum in the digestive system, has a notorious reputation for its tendency to become inflamed (appendicitis), often resulting in surgical ...

The appendix may not be useless after all. The worm-shaped structure found near the junction of the small and large intestines evolved 32 times among mammals, according to a new study. The finding ...

The GI tract is a complex group of organs, each of which helps your body digest and absorb food. Your upper GI tract includes your esophagus, stomach, and the first section of your small intestine, ...

The appendix, a once-dismissed organ now known to play a role in the immune system, may contribute to a person’s chances of developing Parkinson’s disease. An analysis of data from nearly 1.7 million ...

For years, the appendix carried a reputation as the body’s most pointless organ. Doctors often removed it without hesitation, and textbooks labeled it a vestigial structure—something our ancestors ...