Andrew Huberman· PhD
But in the context of gut-brain signaling and the related microbiome, the gut includes the entire digestive tract. That's right, from start to finish the entire digestive tract so much so that today we're going to talk about, for instance, the presence of neurons, nerve cells, that reside in your gut that communicate to specific locations in the brain and cause the release of specific neurochemicals, such as the neurochemical dopamine or serotonin, that can motivate you to seek more of a particular food or type of interaction or behavior, or to avoid particular foods, interactions, and behaviors.