Ever wonder what the appendix does?

In this interesting article from the Journal of Evolutionary Biology, the mammalian cecal appendix is shown to be a "a safe-house for symbiotic gut microbes, preserving the flora during times of gastrointestinal infection". Try to hold onto yours by maintaining a healthy microbiome (microbial ecology) and gut immune function.

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St John's wort as effective for major depression as standard antidepressants

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Lower Vitamin D again linked to earlier death