Control eating behaviour by influence signals Digestive Enzymes that are delivered to the brain and by the vague nerve and two of the most important of dopamine and serotonin so dopamine associated with rewards pleasure compulsions serotonin regulates our mood our memory sleep cognition dopamine about half of the amount of dopamine produced in the body is produced in the gut and some gut microbes can produce vast amounts of dopamine and some of you may know that dopamine is used to treat Parkinson’s disease serotonin is even more striking because virtually all the .
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