A key part of the human digestive system is the enteric nervous system (ENS), which is a large swath of many, many millions of nerve cells coating your esophagus all the way to your rectum. This is nicknamed the body’s “second brain” that works with, yet independently from, the central nervous system (CNS) – which comprises the brain and spinal cord. The process of digestion starts in the mouth, as saliva and the action of chewing begins to break down food. The enteric nervous system then ... [Read More]