Integration - Next Call Wednesday, 5/20 at 6 pm PST

The Medicine You Make With Your Own Voice

After a journey, your nervous system is doing important work - integrating, reorganizing, and settling into new patterns. What you do in the days and weeks that follow matters enormously. I want to share a simple tool to help you connect with your nervous system: humming.

A sustained, low-pitched hum helps give your vagus nerve a workout.

The vagus nerve runs through your larynx and pharynx - directly in the path of vocal vibration. Because of this, humming creates a vibration that stimulates your vagus nerve and can increase your vagal tone - the health and responsiveness of the nerve itself. A well-toned vagus nerve is foundational to nervous system resilience: better stress recovery, more emotional flexibility, improved digestion, and deeper sleep.

Your vagus nerve acts like your body's built-in brake pedal for stress. Humming is one of the most direct ways to press it.

One study found a 15-fold increase in nasal nitric oxide from humming compared to exhaling quietly. Nitric oxide is involved in everything from brain and immune function to blood flow to the lungs. It also protects your body by neutralizing airborne pathogens, and has been shown to reduce blood pressure. The more you hum, the more you flood your system with this quietly powerful molecule.

Research revealed that humming generates the lowest stress index compared to physical activity, emotional stress, and sleep. Yes - lower than sleep. The heart rate variability (HRV) data backs this up - heart rate decreases and heart rate variability increases, both markers of better health and nervous system regulation.

Studies also suggest that the vibration produced by humming deactivates parts of the brain, particularly the amygdala, which is associated with depression and fight-or-flight response. After a journey, you may be processing old material that's moving through. You want the alarm system a little quieter while the deeper integration does its work.

The ideal frequency of the hum is around 120 Hz - roughly the key of B - but the exact pitch isn't crucial. What matters is duration and consistency. Even a few minutes a day makes a measurable difference.

Try it lying down. In the shower. On a walk. After meditation. Take a slow, deep inhale. Then, on the exhale, hum while feeling the vibration in your chest and moving down into your abdomen.

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