Bhramari Breathing: The Humming Method, Its Evidence and Its Limits
Written and reviewed by The Kriya Yogi
Bhramari — the humming bee breath — is the rare breathing technique with a striking, well-replicated physiological measurement behind it: humming sharply increases nitric oxide in the nasal passages. What that means for health is far more modest than the internet suggests. Both halves matter.
How to practise it
Sit tall. Inhale through the nose, then exhale slowly while making a smooth, medium-pitched humming sound, like a bee. Lips gently closed, jaw relaxed, the hum sustained for the whole exhale. That is the entire technique. Five to ten rounds.
You can close the ears with the thumbs while the fingers rest over the eyes — the classical Shanmukhi mudra — which turns attention inward and intensifies the vibration. It is optional; the hum is the practice.
The nitric oxide finding
Humming during exhalation increases nitric oxide in the sinuses by a large multiple compared with quiet exhalation — one of the more robust measurements in breathwork research. Nitric oxide helps keep nasal passages open and plays a role in local defence. What it does not do, on current evidence: cure sinus disease, boost immunity generally, or treat infection. The leap from a real measurement to a medical claim is where most Bhramari content online goes wrong.
Why it feels calming
The hum lengthens the exhale automatically, adds gentle vibration that many people find absorbing, and gives the mind a single sensory object. Studies report reductions in self-reported stress and small short-term blood-pressure effects, consistent with slow breathing generally.
Where it shines
Bhramari is unusually good for people who find silent breath focus difficult — the sound gives attention somewhere to rest. It is a natural lead-in to meditation, and pleasant before sleep. A singing bowl played before practice sets the same register of sustained sound, which some practitioners enjoy as a bridge into the hum. Breathing practice should never produce dizziness, chest pain, or air hunger that does not settle within a breath or two. If it does, stop, breathe normally, and shorten the practice next time.
The practice
Sit and settle
Tall seat, one minute of natural breathing.
First hums
Inhale normally; hum on the exhale for as long as is comfortable. Three rounds, feeling for the vibration in the face and skull.
Settle into a rhythm
Five to ten rounds, hum smooth and unhurried, shoulders soft.
Sit in the quiet after
After the last hum, sit silently for a minute. This transition is where the practice lands.
Cautions
- Active ear infection or significant ear pain: skip the practice or keep the hum very soft.
- Keep the volume modest — a strained loud hum irritates the throat and defeats the purpose.
- Migraine sufferers should test gently; vibration helps some and bothers others.
- Claims that humming treats sinusitis or infection are not supported — see a clinician for those.
What the evidence supports
The nitric oxide increase from humming is well replicated. Studies of Bhramari practice itself are small; they report reduced self-reported stress and modest short-term blood-pressure effects, similar to other slow-breathing practices. Evidence for treating any medical condition is absent.
Questions
+ What is Bhramari pranayama good for?
+ Does humming really increase nitric oxide?
+ How many rounds of Bhramari should I do?
+ Can I do Bhramari with a blocked nose?
Keep reading
Educational content, not medical advice. Check with a doctor before starting new practices if you have a health condition or are pregnant.