Dr Ohhiras

A Gut Feeling About Probiotics

It’s been known that one’s gastrointestinal tract functions in essence as one’s “second brain”, lined with hundreds of millions of neurons. The gut manufactures more dopamine & serotonin, important neurotransmitters that powerfully influence mood and motivation, than does the “head” brain.

The accepted view has been that due to the blood-brain barrier, hormones produced in one’s g-i tract can’t travel to the brain.


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