How Trauma Affects Gut Health: The Mind-Gut Connection

In recent years, we’ve learned more about how mental health and physical health are connected. One key area is how trauma—such as abuse, neglect, or extreme stress—can affect gut health and cause digestive problems.

Understanding the Gut-Brain Axis

The gut-brain axis is a two-way communication system between your brain and your digestive system. Because of this close link, the gut is often called our “second brain.” When trauma happens, the body can release a lot of cortisol, a stress hormone that keeps us in “fight or flight” mode. Since digestion isn’t a priority during this state, cortisol disrupts normal gut function.

Trauma, Cortisol, and Digestion

High cortisol levels from chronic stress or trauma can contribute to weaken the gut lining, leading to a “leaky gut” where harmful substances enter the bloodstream and cause inflammation. This can worsen conditions like irritable bowel syndrome (IBS) and other digestive issues. Trauma also changes the balance of gut bacteria, which affects digestion and mood.

Restoring the Gut-Brain Connection

Therapies that help restore the nervous system’s inner balance, reduce stress and anxiety, and regulate cortisol levels can also support gut health. By calming the body’s stress response, these approaches improve digestion and overall well-being.

01 - 08 - 2025