William James (again) and Carl Lange theorized (some time ago…) that bodily changes may be the responsible of our feeling of emotions. Today there is more and more evidence that interoception and conscious emotional feelings are strictly related. N. WELTENS,D. ZHAO & L. VAN OUDENHOVEV on Neurogastroenterology and Motility address the issue with a very interesting review article. Hundreds of million of neurons, trillions of microbial organisms, something is happening below stairs…