![Gut Feelings–the "Second Brain" in Our Gastrointestinal Systems [Excerpt]](https://static.scientificamerican.com/sciam/cache/file/1D26C856-6D13-49FF-B9794C04BF4535F2_agenda.jpg?w=275&h=154&fit=crop)
Gut Feelings–the "Second Brain" in Our Gastrointestinal Systems [Excerpt]
There is a superhighway between the brain and GI system that holds great sway over humans
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There is a superhighway between the brain and GI system that holds great sway over humans
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