Polyvagal Theory
A theory that explains why your body has three modes — safe, fight-or-flight, and shutdown — and switches between them automatically.
Stephen Porges' theory that the nervous system has three states: safe-and-social (ventral vagal), fight-or-flight (sympathetic), and shutdown/freeze (dorsal vagal). The body moves between these states based on neuroception — unconscious safety detection. Understanding which state you're in helps explain reactions that feel 'irrational' — they are the nervous system's best attempt at protection.
How it works
Your vagus nerve manages three states: safe-and-social (ventral vagal), fight-or-flight (sympathetic), and shutdown/freeze (dorsal vagal). Your body moves between these based on neuroception — unconscious safety detection. Understanding which state you're in helps explain reactions that feel 'irrational.'
Think of it like
It's like a traffic light system inside your body — green (safe), yellow (alert), red (shutdown) — and you don't always get to choose which light is on.
What it feels like
Sometimes you freeze when you wanted to speak, or fight when you wanted to stay calm. Your nervous system chose a state before you had a vote.
Developed by Dr Stephen Porges.