What Is Polyvagal Theory? Understanding Your Nervous System

Have you ever found yourself feeling overwhelmed, anxious, or completely shut down, even when you know logically that everything is okay?

Perhaps your heart races during a difficult conversation, you feel constantly on edge, or you become exhausted and disconnected when life feels like too much.

These experiences aren’t simply happening in your mind. Your nervous system plays an important role in how you respond to stress, relationships, and the world around you.

Understanding these responses can be an important part of developing greater self-awareness and compassion.

What is Polyvagal Theory?

Polyvagal Theory, developed by neuroscientist Dr. Stephen Porges, is a framework for understanding how our autonomic nervous system responds to experiences of safety, connection, and perceived threat.

Our autonomic nervous system helps regulate many of the body’s automatic functions, including heart rate, breathing, digestion, and responses to stress.

Polyvagal Theory offers a way of looking at how our nervous system continually responds to cues from both our internal and external environments, often without our conscious awareness.

These responses can influence how we feel in our bodies, connect with others, and navigate everyday life.

Understanding our nervous system responses

Polyvagal Theory describes three broad patterns of nervous system responding:

Safety and connection: When we feel relatively safe and supported, we may find it easier to relax, connect with others, think clearly, and respond flexibly to life’s challenges.

Fight or flight: When we perceive danger or stress, our bodies prepare for action. We might experience anxiety, restlessness, irritability, muscle tension, or a racing heart.

Shutdown or disconnection: When circumstances feel overwhelming, we may experience exhaustion, numbness, withdrawal, or a sense of disconnection from ourselves and others.

These descriptions are a helpful way of recognizing common stress responses, although our nervous systems are more complex than three distinct states.

We naturally move through different responses throughout the day. The goal isn’t to remain calm all the time, but to develop greater awareness and flexibility in how we respond.

How can this understanding support healing?

For many people, particularly those who have experienced prolonged stress or trauma, the body can remain highly sensitive to signals of potential threat.

You might recognize this as constantly feeling on guard, struggling to relax, becoming overwhelmed easily, or feeling disconnected from your emotions.

These responses can be understood as ways your body has learned to protect you.

Through nervous system-informed therapy, we can begin to recognize these patterns and explore what helps you experience greater steadiness, safety, and connection.

Depending on your needs, this might include grounding, mindfulness, gentle movement, breath awareness, or exploring how your relationships and environment influence your sense of safety.

The intention is not to control every nervous system response, but to build the capacity to move through life’s challenges with greater awareness and resilience.

Coming back into connection with yourself

One of the central ideas in my work is that healing involves more than understanding our experiences intellectually. It also involves how we experience ourselves within our bodies.

My graduate capstone, Restoring the Body’s Rhythm, explored the relationship between Polyvagal Theory, trauma, and the healing potential of yoga and embodied practices.

This work continues to shape how I approach counselling, integrating nervous system awareness with mindfulness, somatic therapy, and compassionate self-exploration.

We cannot eliminate stress from our lives, nor should we expect ourselves to feel calm all the time. But we can develop a different relationship with our responses, learning to recognize what we need and support ourselves with greater kindness.