Your Nervous System Is Listening: How Play Regulates Stress at Its Source

That video was a powerful reminder of co-regulation—how our children absorb our stress, but also our calm. If our stress is contagious, how do we actively choose to spread calm instead? The answer lies in understanding that your nervous system is always “listening” to the world, and you can change what it’s “hearing” through a powerful tool: the vagus nerve.

The Polyvagal Theory, developed by Dr. Stephen Porges (2011), gives us a beautiful map of this process. It suggests we have a “ladder” of three primary nervous system states, all regulated by the vagus nerve:

1. Ventral Vagal (Top of the Ladder): This is our “social engagement” system. When our nervous system detects cues of safety (a friendly face, a calm voice, a playful interaction), we are in this state. We feel calm, grounded, connected, curious, and ready to play. Our heart rate is regulated, and we can take full, deep breaths. This is the state where connection and learning happen.
2. Sympathetic (Middle of the Ladder): When our nervous system detects a threat, it knocks us down the ladder into this “fight or flight” state. This is the mobilized, high-energy, anxious, or angry state we’ve been discussing. We are ready for action, but we are not capable of calm connection or play.
3. Dorsal Vagal (Bottom of the Ladder): This is the oldest part of our nervous system, a “shutdown” or “freeze” state (Suhajda & Kozma, 2019). If the threat is too big and we feel trapped (we can’t fight or flee), the body collapses to conserve energy. This is numbness, dissociation, feeling “checked out,” depressed, or hopeless.

As parents, we “climb” up and down this ladder all day. The key is that our state is contagious. A child having a tantrum is deep in their Sympathetic state. If we meet them there with our own Sympathetic anger (“Stop shouting!”), it escalates the situation. If we drop into a Dorsal “shutdown” state (checking out, giving up), the child feels abandoned. But if we can stay in our Ventral Vagal (calm, connected) state, our regulated presence acts as an anchor, a cue of safety that invites the child’s nervous system to climb back up the ladder and co-regulate with us (Dana, 2018).

So, how do we get back to our Ventral Vagal state when we’re stressed? We use our bodies to send “cues of safety” back to our brains. And this is where play becomes a biological tool for self-regulation.

Play is not just a behavior; it is a primary process of the brain, a deep biological need (Suhajda, 2018). When you engage in playful, “embodied” actions (Suhajda, 2018), you are directly toning your vagus nerve:

• Humming, singing, or a deep sigh: The vagus nerve passes through your vocal cords and diaphragm. Activating them sends a “calm” signal directly to your brainstem.
• Rhythmic movement: Dancing, rocking, or gently swaying soothes the nervous system, signaling safety (like a parent rocking a baby).
• Laughter: This is a powerful way to complete the stress cycle, releasing physical tension and discharging pent-up energy.
• Silly faces or safe eye contact: This directly engages the “social engagement” (Ventral Vagal) system.

These “playful pauses” are not trivial. They are precise, neurobiological interventions. You are actively “talking” to your nervous system in its own language, telling it, “The threat has passed. You are safe.” By doing this, you regulate yourself, allowing you to become the safe, playful, and connected parent your child needs.

Now we know why playful actions like humming or dancing work—they send safety signals to our vagus nerve. The next video will give you even more practical, real-world examples of these ‘playful pauses’ that you can use anytime, anywhere.

References:

• Dana, D. (2018). The Polyvagal Theory in Therapy: Engaging the Rhythm of Regulation. Norton.
• Porges, S. W. (2011). The Polyvagal Theory: Neurophysiological foundations of emotions, attachment, communication, and self-regulation. W.W. Norton & Company.
• Suhajda, E. V. (2018). The Internal, Neural Dynamics of Play, Learning and the Agency of the Child. In: Russel, W. (Ed.) The Strength of European Diversity for Building Children’s Resilience through Play and Drama. University of Gloucestershire.
• Suhajda, E. V., & Kozma, B. (2019). Pedagógiai ismeretek: Mestervizsgára felkészítő oktatási jegyzet. Magyar Kereskedelmi és Iparkamara.