Polyvagal Theory and neuroception
The autonomic nervous system (ANS) doesn’t run on logic. It runs on neuroception.
In 1994, neuroscientist Stephen Porges introduced the Polyvagal Theory, a framework that reshaped how we understand stress, safety and regulation.
The core idea: we don’t operate on a simple calm/alarm binary. We move through three distinct autonomic states, hierarchically organised and largely mediated by the vagus nerve:
- Ventral vagal: safety and social engagement. Breath is slow and diaphragmatic, heart rate is well regulated, cognition is accessible.
- Sympathetic: mobilization. Breath shortens and rises into the chest, heart rate climbs, the body prepares for action.
- Dorsal vagal: shutdown. When a threat is perceived as inescapable, the body conserves energy through immobilization: fatigue, numbing, dissociation.
Porges’ key contribution is the concept of neuroception: the nervous system continuously scans for cues of safety or danger, below conscious awareness, and shifts state accordingly, before we’ve “decided” anything.
This is precisely where breathing therapy becomes clinically relevant.
Breath is the only autonomic function under direct voluntary control.
It works as an accessible entry point to vagal tone: a slow, extended exhale is one of the most reliable signals we can send the nervous system that danger has passed, supporting a measurable shift back toward the ventral vagal state.
This is not relaxation in a generic sense. It’s a trainable physiological skill, with direct implications for stress resilience, recovery and workplace wellbeing.
At Sbreeeze, this is the foundation of the approach: using structured breathing practice, including cardiac coherence, as a concrete lever on the autonomic nervous system, not just a mindset shift.
Contact me to find out more.
