Vagal toning & humming
Humming leans on your vagus nerve — the nerve that runs from your brainstem to your gut and controls your 'rest and digest' mode. It passes right by your vocal cords, so humming vibrates them while the slow exhale on each note presses on that nerve. The leading idea is that this tips you toward the calming, parasympathetic side: heart rate down, alarm off.
Vagal toning describes practices — humming, low chanting, slow vocalization on the exhale — that some clinicians and researchers associate with increased parasympathetic activity. Nervous-system states are complex and individual. This is orientation, not diagnosis.
- a buzzing vibration in the chest or throat
- a quieter feeling after a few rounds
- a longer, easier exhale
- self-consciousness about making sound
- 'is this doing anything?' — fine; effects are subtle
The vagus nerve has branches near the larynx and the heart. Voicing on a long exhale combines vibration with the exhale's natural parasympathetic lean. Strangely, humming also spikes the nitric oxide in your nose about fifteenfold — a gas that opens your airways and blood vessels (Weitzberg & Lundberg, 2002). That's a side effect, not the reason it calms you, but it's a real one. The settling part is well observed across people; the precise mechanism is still being worked out.
- forcing the sound loud — quiet and low works better
- doing it when even gentle vocalization feels exposing
- a low 'voo' or hum on the exhale, soft
- a few rounds; rest in between
- private space if making sound feels vulnerable
Blue Bonsai is a small, private companion for living with C-PTSD — built for ordinary days as much as hard ones.
Create a free accountFree. No streaks. A companion, not treatment.
Draft content. Founder review required before any public launch.