Food For Thought: How Your Belly Controls Your Brain

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how your belly controls your brain

What if I told you that your belly exercises a great deal of control over your brain?

Now before you dismiss this possibility, and close your mind to the prospect of learning something remarkable, ask yourself if you have ever felt butterflies in your stomach, saw something so disturbing it made you feel sick to your stomach or experienced a gut feeling about something? What about when you are hungry, has it ever made you feel moody?

Our bellies and brains are physically and biochemically connected in a multitude of ways, which means the state of our intestines can change the way our brains work and behave. In fact, approximately 90% of serotonin (which regulates our mood) is produced in our belly and only 10% in the brain.

As a nutritionist, microbiologist, and neuroscientist, Ruairi Robertson of Harvard University is passionate about the link between our bellies and brains, which scientists have yet to grasp fully. He became especially interested in this relationship after learning about a study where mice completely lost their instinctual fear of cats, simply because of ingesting a microbe Toxoplasma gondii. Interestingly, even after it was removed from the body, their behavior continued, which suggests it changes the structure of the brain.

His research is examining how our intestines and the microbes within them can influence both physical and mental health, and most importantly how our diets affect this relationship.

You can listen to his incredible TEDx talk below.


You can follow Ruairi Robertson on Twitter HERE

Written by Gavin Nascimento, Founder Of

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This article (Food For Thought: How Your Belly Controls Your Brain) was published by A New Kind Of Human and is published here under a Creative Commons license with attribution to

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