How Your Gut Affects Your Mood

At any given moment, you have somewhere between 10 trillion and 100 trillion microorganisms inhabiting your gut — that’s more microbes in your bowels than there are cells in your body.

The latest research shows that the digestive tract and the central nervous system maintain a complex two-way line of communication via the “gut-brain axis.” Studies where researchers manipulated the gut bacteria in mice have shown that these microbes influence how the brain develops, particularly the regions that influence the stress response and conditions related to stress, such as anxiety and depression, said Jane Foster, a neuroscientist at McMaster University.

More in-depth coverage on this gut-brain connection at Nature Magazine. Also, a 5 minute video on mapping your microbiome. 


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