Polyvagal Breathing: A Nervous System Regulation Technique

Whether you’re struggling with anxiety, trauma, chronic stress, or simply want to build more emotional resilience, polyvagal breathing can be a powerful addition to your self-care toolkit. Rooted in the science of the Polyvagal Theory, this gentle practice helps calm your nervous system and reconnect you to a sense of safety and balance.

What Is the Polyvagal Theory? 

First, let’s break it down. The Polyvagal Theory, developed by Dr. Stephen Porges, is a science-backed explanation of how our autonomic nervous system responds to stress and safety. 

It highlights three primary states: 

  1. Ventral Vagal (Safe and Social): When we feel connected, calm, and grounded. 

  2. Sympathetic (Fight or Flight): When we feel anxious, angry, or overwhelmed. 

  3. Dorsal Vagal (Freeze/Shutdown): When we feel numb, hopeless, or disconnected. 

Polyvagal breathing exercises are designed to stimulate the vagus nerve, the major nerve of the parasympathetic system, and help us shift into the ventral vagal state — that “safe and social” zone. 

What Is Polyvagal Breathing? 

Polyvagal breathing is intentional, slow breathing that engages the vagus nerve, signaling safety to the brain and calming the body. 

It often involves: 

  • Longer exhales than inhales 

  • Nasal breathing 

  • Slow, rhythmic patterns 

By controlling the breath, we send cues of safety to the nervous system, helping reduce anxiety, lower heart rate, and improve emotional regulation. 

A Simple Polyvagal Breathing Exercise to Try 

You don’t need any special equipment or experience to get started. Just a few minutes of focused breathing can make a difference. 

The 4-6 Polyvagal Breath 

  1. Sit or lie down comfortably. 

  2. Inhale slowly through your nose for 4 seconds. 

  3. Exhale gently through your mouth or nose for 6 seconds. 

  4. Pause briefly (1–2 seconds) before inhaling again. 

  5. Repeat for 3–5 minutes, or as needed. 

Why this works: The longer exhale helps activate the parasympathetic nervous system, signaling safety and slowing down the body’s stress response. 

Bonus Tip: Add a Humming Sound 

Humming on the exhale (like a soft “mmm” sound) vibrates the vagus nerve and deepens the relaxation effect. You can hum softly or even try a gentle “Om” if you’re comfortable. 

Benefits of Polyvagal Breathing 

  • Lowers heart rate and blood pressure 

  • Reduces anxiety and stress 

  • Improves digestion  

  • Enhances emotional regulation 

  • Builds resilience to daily stressors 

  • Helps with trauma recovery and PTSD 

  • Supports better sleep 

When to Use It 

  • Before or after a stressful meeting or interaction 

  • When you notice anxiety creeping in 

  • To start or end your day with calm 

  • During meditation or yoga 

  • As part of a trauma healing practice 

A Final Word 

Your breath is a built-in, always-available tool for healing. 

Polyvagal breathing isn’t just a relaxation technique — it’s a way to build a healthier relationship with your body, create a sense of internal safety, and bring more peace into your daily life. 

Start small. Just a few mindful breaths can create a ripple effect through your nervous system. 

Ella Nagle, MA, LCPC

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