Scientists learn more about the fascinating connection between our brains and our bowels

Bacteroides fragilis — one of the many "friendly" bacteria that live in our gut — seems to be capable of altering the behavior of mice, according to a new study. In a mouse model for autism, exposure to Bacteroides fragilis improved the mice's gastrointestinal function and, along the way, reduced some of their external behavioral symptoms, including obsessive behaviors and anxiety.

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