The enteric nervous system (ENS), often called the "second brain," is a complex network of neurons embedded in your digestive tract. It operates both independently and in close communication with your brain, regulating digestion, supporting gut health, and even influencing mood through the gut-brain axis. From controlling gut motility with the Migrating Motor Complex (MMC) to partnering with your microbiome to produce mood-boosting neurotransmitters, the ENS is vital for overall health. Explore how this intricate system impacts your digestion, immunity, and mental well-being—and discover actionable tips to support your gut-brain connection.

The “Tour of the Body” Series continues with the stomach and the motor motility complex. Did you know your stomach acid is part of your immune system?