
30/05/2025
Invisible But Powerful: How Sound Helps Us Heal from the Inside Out
By Jim Donovan, M.Ed.
In 2019, I nearly died.
After a sudden bout of septic shock, I was given a 20% chance of survival. I spent weeks in the ICU, underwent multiple surgeries, and lost my ability to speak above a whisper. Recovery was long, and for a while, I wasn’t sure I’d ever get my voice—or my energy—back.
But what ultimately helped me return to health wasn’t just medical care. It was vibration.
I mean that literally.
As a lifelong musician, I already knew the therapeutic potential of sound. But through my recovery, I learned just how powerful it could be—when used intentionally—to help the body rebalance, rewire, and restore itself from the inside out.
This isn’t just personal. It’s physiological. And today, I want to share with you one of the most overlooked healing pathways that every one of us carries inside our own body: the vagus nerve.
The Vagus Nerve: Your Body’s Built-in Recovery System
The vagus nerve is the longest cranial nerve in your body. It winds from your brainstem down through your face, throat, heart, lungs, and into nearly every organ in your torso. It's part of your parasympathetic nervous system—the one responsible for rest, digestion, and repair (Breit et al., 2018).
When this nerve is activated properly, it signals to your body that you are safe. That’s when healing can begin.
But many people today live in a near-constant state of stress, which inhibits vagal tone—the strength and responsiveness of this nerve. Poor vagal tone is associated with anxiety, chronic inflammation, cardiovascular issues, and even depression (Garland et al., 2021).
Here’s where sound comes in.
How Sound Stimulates the Vagus Nerve
Research shows that vocal activities like humming, chanting, or toning can stimulate the vagus nerve through the muscles at the back of the throat and vocal cords (Porges, 2017). These practices help to slow the breath, deepen exhalation, and promote parasympathetic activity.
One of the simplest examples is humming with the lips closed and tongue pressed gently to the roof of the mouth. This directs vibrational energy into the face and skull, which are rich in vagal nerve pathways. People often report a calming, buzzing sensation and a noticeable shift in their mental and physical state after just a few repetitions.
In fact, when participants in my workshops practice just 60–90 seconds of intentional sound, many experience visible softening in their facial tension, deeper breathing, and even clearer vision.
It’s a powerful reminder: Sound is more than something we hear. It’s something we feel—and something we can use.
Sound + Intention = Self-Regulation
When I first began teaching sound-based healing, I thought the voice was simply a tool for expression. But I’ve since learned it’s also a tool for regulation.
Intentional vocalization triggers the release of feel-good neurochemicals like dopamine, oxytocin, and nitric oxide, all of which support stress relief and emotional balance (Zaminy et al., 2022). More importantly, these practices are free, accessible, and already built into every human body.
You don’t need to be a singer to use them. You just need to be willing to make a sound.
One Sound, Repeated Regularly
The best results come from consistency. In my daily life, I use these practices while walking, before bed, and when I feel tension rising. Even one sound, practiced regularly, can shift your baseline.
Sound healing isn’t magic. It’s nervous system hygiene.
You already carry the tools inside of you. My invitation? Use them.
References
Breit, S., Kupferberg, A., Rogler, G., & Hasler, G. (2018). Vagus nerve as modulator of the brain–gut axis in psychiatric and inflammatory disorders. Frontiers in Psychiatry, 9, 44. https://doi.org/10.3389/fpsyt.2018.00044
Garland, E. L., Thomas, E. A., & Beck, A. C. (2021). Mind–body interventions and the vagus nerve: Mechanisms and therapeutic implications. Frontiers in Neuroscience, 15, 630229. https://doi.org/10.3389/fnins.2021.630229
Porges, S. W. (2017). Vagal pathways: Portals to compassion. In E. M. Seppälä, E. Simon-Thomas, S. L. Brown, M. C. Worline, C. D. Cameron, & J. R. Doty (Eds.), The Oxford Handbook of Compassion Science (pp. 189–202). Oxford University Press.
Zaminy, A., Heshmati, M., & Shariat, A. (2022). The neurochemical and psychological effects of vocal exercises: A review of mechanisms behind sound-based interventions. Journal of Integrative Neuroscience, 21(3), 85. https://doi.org/10.31083/j.jin2103085