By Bob Condor

Over the last decade, scientists have speculated that our intestinal linings contain certain cells that are exactly the same molecular structure as brain cells. From there, the scientists make the logical and seemingly feasible assumption that our guts act as a second brain in the body, even dispensing orders and signals to other cells.

Gut instinct, indeed.

A study just published in the American Journal of Gastroenterology gives credence to the “second-brain” nature of the gut—and, perhaps …