Our guts operate on a quite separate nervous system. Learning more will help control gastrointestinal diseases
Our huge gastrointestinal tracts operate their own nervous system, using neurons that follow different principles from those of brain neurons, according to recent findings: Our approximately seven-meter long gastrointestinal (GI) tract has its own functionally distinct neurons. Since this
enteric nervous system (ENS) operates autonomously, it is sometimes referred to as the second or abdominal brain. While the ENS controls muscle movement (peristalsis) in the gut and its fluid balance and blood flow, it also communicates with the immune system and microbiome.
Medical Xpress (December 7, 2020) Paper.