
Stephen Porges: The Polyvagal Theory & The Vagal Nerve #264
The Human Upgrade: Biohacking for Longevity & Performance
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The Myelonade Vagus Is a Hierarchical Model of Polyvagal Theory
Polyvagal theory is a hierarchical model that articulates three different circuits. One is this myelonade vagus linked to our social engagement system the second is a sympathetic fight or flight system mobilization system and the third is a shutting down system but those systems that I talked about for defense just now are not solely there for defense. Our sympathetic nervous system is what makes us feel good energetic when we're safe it enables digestion to occur efficiently enabling our bowels to work well.
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