Saturday, July 15, 2023

A second brain

 The Second Brain: Our Enteric Nervous System

"Comprised of 100 million neurons, the network of nerve cells lining the digestive tract is so extensive that it has earned the nickname “second brain.” Technically known as the enteric nervous system, this network of neurons is often overlooked and contains more nerve cells than the spinal cord or peripheral nervous system.

Beyond the sheer volume of neurons, our second brain bears even more resemblance to the brain in our heads. The mass of neural tissue in our gut produces over 30 different neurotransmitters, which are signaling molecules typically associated with the brain. This includes a staggering 95% of the production and storage of serotonin, the neurotransmitter famously known as the “happy chemical” due to its role in regulating mood and wellbeing."

Just because I thought this was interesting.

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