Aaron Hartman, MDFunctional Medicine Specialist | Clinical Researcher

Gut Health 101-2 | The Gut_The Body's Second Brain_

6 Dec 2024 · 0 min

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Short educational talk by Aaron Hartman, MD asserting that the gastrointestinal (GI) tract produces the majority of the body's neurotransmitters and contains a large number of neurons—sometimes called the "second brain." The speaker cites two specific claims: that 75% of neurotransmitters are made in the GI tract and that the gut has as many neurons as the spinal cord.

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