From Our Neurons to Yours

Your gut - the second brain? | Julia Kaltschmidt


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You may have heard the idea that the gut is the second brain, but what does that really mean?

Maybe it has to do with the fact that there are something like 100 to 600 million neurons in your gut. That's a lot of neurons. That's about as many as you'd find in the brain of say, a fruit bat, or an ostrich, or a Yorkshire Terrier. 

And it turns out, this network of intestinal neurons, termed by scientists the "enteric nervous system," can actually have a lot of impact on our daily lives – not just in controlling things like our appetite, but may contribute to our mental well-being — and potentially event to disorders ranging from anxiety to Parkinson's disease.

To learn more about this fascinating "second brain", we spoke with Julia Kaltschmidt, a Wu Tsai Neurosciences Institute faculty scholar and an associate professor in the Department of Neurosurgery at Stanford Medicine.

Links
Kaltschmidt Lab website

Regional cytoarchitecture of the adult and developing mouse enteric nervous system.
Hamnett R, Dershowitz LB, Sampathkumar V, Wang Z, De Andrade V, Kasthuri N, Druckmann S, Kaltschmidt JA. Curr Biol. 2022 Aug 31:S0960-9822(22)01307-0. doi: 10.1016/j.cub.2022.08.030. Online ahead of print. PMID: 36070775

Other recent publications



Episode Credits
This episode was produced by Michael Osborne, with production assistance by Morgan Honaker and Christian Haigis, and hosted by Nicholas Weiler. Cover art by Aimee Garza.

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From Our Neurons to YoursBy Wu Tsai Neurosciences Institute at Stanford University, Nicholas Weiler

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