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Duration:03:46
Uploaded:2026-05-26
Last sync:2026-07-08 07:45
Let's talk about the vagus nerve, because if you've been on the internet for more than five minutes, you've probably been told to "hack" it, "reset" it, or gently whisper affirmations to it while dunking your face in ice water. What is all that supposed to do?

Related HCT episodes:
Mysteries of the Microbiome: https://youtu.be/ywFJUcGyMlI

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Credits:
Aaron Carroll -- Writer
Tiffany Doherty -- Writer and Script Editor
John Green -- Executive Producer
Stan Muller -- Director, Producer
Mark Olsen – Art Director, Producer
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