The gut and the brain are in constant communication. This relationship, often called the gut-brain axis, influences digestion, mood, immune response, and even inflammation levels. For many patients, improving gut health can positively impact overall wellness in ways they did not expect. The Gut-Brain Axis Your digestive system contains millions of nerve cells that communicate directly with your central nervous system. In fact, much of your serotonin, a neurotransmitter that i