A network of glial cells, the logic gates of the gut’s nervous system, are seen in this micrograph. The cells — the dark orbs enveloped in gray — have been colorized according to how they respond to a chemical signal. Credit: Proc. Natl. Acad. Sci./Gulbransen Lab ======================================================================================== Revealing the Logic of the Body’s “Second Brain” Scientists discover new science in the gut and, potentially, new leads on how to treat irritable bowel syndrome and other disorders. Researchers at Michigan State University have made a surprising discovery about the human gut’s enteric nervous system that itself is filled with surprising facts....