The appendix isn't useless. It stores beneficial gut bacteria that help replenish your microbiome when it's threatened. Removing it can cause digestive problems and vitamin deficiencies because you lose that microbial backup.
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Girlfriends, do you remember middle school biology? We all studied about the appendix being a vestigial organ, just like the tail. But physicians forget to tell the patients that when the appendix is removed, you might start experiencing digestive trouble and vitamin deficiencies. How is that possible for a vestigial organ? Turns out, your smelly little appendix is the reserve bank of your microbiome. When levels of certain good strains start to get threatened, the body reaches into your appendix and repopulates the microbiome. So don't be in a tearing hurry to get rid of your tail— I mean, your appendi—