Anxiety May Originate In Your Gut!

The gut, and not just the brain, is one of the main originators of anxiety
Anxiety May Originate In Your Gut!

Image Credits: porschelinn, Flickr

by Dr. Edward F. Group III | Global Healing Center | July 3, 2014


How many times have you followed your “gut instinct” as a method for determining what you should or shouldn’t do in a particular situation? Have you ever felt anxiety fluttering its relentless wings in the center of your stomach? It might not be simple nervousness. The human gut is often called the “second brain,” and for very good reason. Research has begun to understand the link between mood and behavior and how they are directly affected by the bacteria in the gut. The gut, and not just the brain, is one of the main originators of anxiety.

Bacteria and Mood: What’s the Link?

Gastrointestinal ailments are frequently associated with anxiety and imbalanced mood, and many researchers theorize that affected persons could alleviate symptoms simply by balancing the harmful flora in their gut with more beneficial bacteria. [1] Speculation over other mental disorders, like autism, has also been strongly linked with imbalances in intestinal flora. [2]

Bacteria in the gut are responsible for a number of metabolic and biological process within the body. Brain health and mood stabilization is something that is deeply affected by the balance of good bacteria in the intestines. A study from McMaster University recently verified this notion, observing just how powerful the gut is at influencing brain chemistry and behavior.

In the study, researchers disrupted normal gut bacteria count in healthy mice by administering antibiotics, bacteria-killing medicines that destroy all bacteria in its path — including good bacteria. Following disruption of the normal flora balance, mice became less cautious, and changes in the animals’ brain-derived neurotrophic factor — a protein associated with mood disorders — increased significantly. Upon discontinuing antibiotics, gut bacteria normalized and brain chemistry was restored to pre-study levels.

Researchers in this study noted that, while many factors play a role in dictating mood and mental health, bacteria in the gut strongly influences behavior and can be noticeably disrupted during antibiotic administration. This conclusion leads many to believe that the use of probiotics, beneficial bacteria found to influence serotonin levels, the immune system, and digestion, may be a helpful therapeutic tool for behavioral disorders. [3]

Serotonin: The Gut’s Mood-Boosting Neurotransmitter

About 90% of serotonin is found in the intestinal tract, and roughly 5-10% in the brain. [4] In fact, a healthy intestinal tract may correlate with healthy levels of serotonin, a monoamine neurotransmitter responsible for regulating mood. Around 1 trillion bacteria live in the gut and around 100 million neurons also reside in the intestines, blasting the myth that our neural health is influenced only by the brain. Really, when it comes down to it, keeping the entire body healthy is the only way to maintain a proper mood balance.

One Final Thought

Maintaining digestive health by eating natural foods, especially those with probiotic qualities, and drinking plenty of purified water, may be helpful for promoting normal mental health. Exercise, daily sunlight exposure, and increasing probiotic intake may all be helpful ways to boost serotonin levels and manage mood naturally. [5]

Have you noticed any mental effects when probiotics are part of your nutritional regime? Do you feel less anxious when you’re eating healthy and maintaining an overall healthy lifestyle? Let us know your thoughts in the comments!


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