Recent research has revealed a strong link between the health of the intestinal tract and the brain. The “gut brain” or enteric nervous system (ENS) extends from the esophagus to the rectum. It contains the same receptors, neurons, and neurotransmitters that the central nervous system (CNS) does. The ENS releases neurotransmitters into the blood that travel to the brain and affect brain function. These chemical messengers, such as ghrelin, act in synergy with the vagus nerve to regulate food intake and appetite. They also help to regulate mood.

The brain regulates digestion, which is why worry, stress, and thought processes affect digestion. But, the digestive system, including the gut microbes, also affects the brain and can cause brain fog, anxiety, depression, and other mood disorders. The articles in this month's Sunshine Sharing cover products that help the gut to heal and promote better mental function and mood, too. There's also a handout to educate people on the need to work on the intestinal tract if they have problems with their mood or mental focus.