“Once you start to approach your body with curiosity, rather than fear, everything shifts”. Besser van der Kolk, MD (The Body Keeps The Score)
Autonomic Nervous System Balance: Polyvagal Theory
Polyvagal Theory (PVT)
Note: Some details of PVT are not consistently empirically validated. However, clinical application has been efficacious for many people.
- Vagus nerve-the longest nerve in the autonomic nervous system running from the brainstem to the colon. It is a major part of our parasympathetic nervous system.
- The vagal nervous system is compromised primarily by:
- High mental or physical stress
- Toxins or infections
- There are 3 autonomic nervous system pathways
- Dorsal vagal pathway (rest and digest)
- When compromised, can shut down and go into a freeze response. Analogy-like a dark basement that you retreat into, and hide when the outside world feels unsafe.
- Ventral vagal pathway (social cues/engagement)
- Analogy- like the warm, social living room where family/friends come together.
- Sympathetic nervous system (fight or flight)
- Like the alarm security system.
- Dorsal vagal pathway (rest and digest)
- Neuroception (beneath conscious awareness)
- Depending on how our nervous system ‘interprets’ a situation determines which pathway (dorsal vagal, ventral vagal, or sympathetic) comes online.
- We know that 80% of the vagus’ nerve fibers send sensory information up from the body to the brain, while only 20% send information downwards from the brain to the body.
- For optimum physical and mental health, we need to be able to move between each of these states with flexibility, and not get stuck in any particular one.
- Stuck in the dorsal vagal state we carry loneliness, disconnection, and numbness.
- In the ventral vagal state, we become more connected and attuned with others.
- Stuck in the sympathetic state, we carry fear, distrust, dysregulation, and anxiety.
- Co-regulation (connection)
- The process of sending and receiving signals of safety with others.
- A biological need that is as important for mental health, as food and water are for physical health.
Tools that Support Nervous System Balance
- Activities that involve movement (e.g. yoga, dance, exercise)
- Music, drumming, art, tapping
- Massage
- Mindfulness/meditation
- Supportive/safe interaction with people (connection)
- Small stress activities (“micro-sucs”) to desensitize the “alarms” of an oversensitive sympathetic nervous system.
Proposed Questions for Discussion/Sharing:
- Did this information spark any curiosity and how?
- Have any activities helped you increase flexibility between states of “shut down” and “high alert”?
- Have any activities worsened your flexibility between states of “shut down” and “high alert”?
Disclaimer
This summary is for general informational purposes only and does not constitute the practice of medicine or other professional health care services, including the giving of medical advice, and no doctor/patient relationship is formed.


Leave a comment