The gut-brain axis (GBA) consists of bidirectional communication between the central and the enteric nervous system, linking emotional and cognitive centers of the brain with peripheral intestinal functions.
Embedded in the wall of the gut, the enteric nervous system (ENS) has long been known to control digestion. Now it seems it also plays an important role in physical and mental well-being. Our gut has been called our brain.
Did you also know that many are now referring to the gut as the second brain? The gut contains more neurotransmitters than your brain and, amazingly, communicates important regulating information to your actual brain.
Early in our embryogenesis, a collection of tissue called the ‘neural crest’ appears and divides during fetal development. One part turns into the central nervous system, and the other migrates to become the enteric nervous system. Both ‘thinking machines’ form simultaneously and independently of one another until a later stage of development… Then the two nervous systems link through a neural cable called the ‘vagus nerve,’ the longest of all cranial nerves. The vagus nerve ‘wanders’ from