I wonder if this may have to do with the "second brain" that scientists claim exists in the gut: https://www.scientificamerican.com/article/gut-second-brain/ ht

I wonder if this may have to do with the "second brain" that scientists claim exists in the gut: https://www.scientificamerican.com/article/gut-second-brain/ https://www.scientificamerican.com/article/gut-second-brain/