Your Gut and Brain: The Conversation Happening Inside You

 By Brittany Barhite | Adapted for Buzz About Town, March 2026 

Most of us have felt it before: butterflies in the stomach before a big moment or an uneasy gut during stressful times. That is not just a figure of speech. The digestive system and the brain are in constant communication, and researchers continue to learn just how important that relationship may be for both digestive health and emotional well-being.

Part of that communication happens through the enteric nervous system, often nicknamed the body’s “second brain.” Johns Hopkins describes it as two thin layers of more than 100 million nerve cells lining the gastrointestinal tract from the esophagus to the rectum. Its job is to help control digestion, but it also communicates back and forth with the brain.

That helps explain why stress can trigger stomach upset, bloating, or changes in bowel habits. It also helps explain why ongoing digestive problems can affect mood. Johns Hopkins notes that researchers are finding evidence that irritation in the gastrointestinal system may send signals to the central nervous system that contribute to mood changes, especially in people with conditions such as irritable bowel syndrome, or IBS. Common IBS symptoms include abdominal pain, bloating, and changes in bowel habits such as diarrhea or constipation.

What can support gut-brain health?

A few simple habits may help support both digestive and emotional wellness:

• Manage stress. Relaxation techniques, mindfulness, and gentle movement may help calm both the nervous system and the gut.
• Eat fiber-rich foods. Johns Hopkins notes that a balanced diet rich in fruits and vegetables provides fiber that supports gut health.
• Be thoughtful about probiotics. Yogurt, kefir, and other fermented foods contain probiotics, but the evidence that probiotics improve mood is still unclear, and their benefits for IBS are not conclusive across the board.
• Talk with your doctor if symptoms persist. IBS treatment can include food and lifestyle changes, mental health therapies, probiotics in some cases, and sometimes medications, including certain antidepressants that may help calm gut-related nerve signaling.

The takeaway is simple: your gut and brain are not working separately. They are in conversation all the time. Paying attention to digestive symptoms, stress levels, and daily habits may be one more way to support your overall well-being.

This article is for informational purposes only and is not medical advice.

 Originally published in The Buzz Book Spring 2026, Health and Wellness Focus Section