
Stephen Porges: The Polyvagal Theory & The Vagal Nerve #264
The Human Upgrade: Biohacking for Longevity & Performance
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Do You Know What the Polyvagal Theory Is?
There's two systems right mm-hmm okay can you go a little bit deeper on the second system that doesn't help your own away from tigers. The second system is what you see in pet stories if you look at reptiles they immobilize they just don't move they death and are trying to become inanimate. When mammals do this our metabolic demands are great we need lots of oxygen and this can be potentially lethal so the metaphor or the urban myth that the person died out of fear is that the person's heart stopped with this mechanism which is a through a vagal pathway.
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