Thursday, January 27, 2011

Gut brain connection - Eat to "feel" good

The Gut-Brain Connection


When you consider the fact that the gut-brain connection is recognized as a basic tenet of physiology and medicine, and that there's no shortage of evidence of gastrointestinal involvement in a variety of neurological diseases, it's hard to fathom why diet is still so widely ignored by the mental health field.



In a very real sense, you have two brains, one inside your skull and one in your gut.



These two organs actually originate from the same type of tissue during fetal development. One part turns into your central nervous system, while the other develops into your enteric nervous system. These two systems are connected via the vagus nerve, the tenth cranial nerve that runs from your brain stem down to your abdomen.



This is what connects your two brains together, and explains such phenomena as getting butterflies in your stomach when you're nervous, for example. They work in tandem, each influencing the other. And this is why your intestinal health can have such a profound influence on your mental health, and vice versa.



For an interesting and well-written layman's explanation of this, read through Sandra Blakeslee's 1996 New York Times article Complex and Hidden Brain in Gut Makes Stomachaches and Butterflies.



Further evidence of this connection includes the fact that a number of neurotransmitters such as serotonin can be found not only in your brain, but also in your gut. In fact, the greatest concentration of serotonin, which is involved in mood control, depression and aggression, is found in your intestines, not your brain!

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