Most people know only two things about the appendix: You don’t need it – and if it bursts, you need surgery fast. That basic ...

For more than a century, the human appendix has been written off as a biological relic, a shrunken leftover from plant-eating ancestors that serves no real purpose. That view is now outdated. A ...

We used to treat the appendix as a useless leftover, but fresh research is changing how we see it. As it turns out, it might play a serious role in how your gut and immune system stay healthy. Here’s ...