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Gut directly connected to brain by newly discovered neuron circuit

The human gut is lined with more than 100 million nerve cells—it's practically a brain unto itself.


September 25, 2018
By Emily Underwood Sciencemag.org
Photo: Fotolia The human gut is lined with more than 100 million nerve cells—it's practically a brain unto itself.

And indeed, the gut actually talks to the brain, releasing hormones into the bloodstream that, over the course of about 10 minutes, tell us how hungry it is, or that we shouldn’t have eaten an entire pizza. But a new study reveals the gut has a much more direct connection to the brain through a neural circuit that allows it to transmit signals in mere seconds. The findings could lead to new treatments for obesity, eating disorders, and even depression and autism—all of which have been linked to a malfunctioning gut. | READ MORE