Chandra Bhedana (Left-Nostril Breath)
Calm · Intermediate · 8 rounds
In through the left nostril, out through the right. Cooling and quieting.
Where alternate-nostril breathing balances, single left-nostril breathing biases in one direction: traditionally the cooling, quieting 'lunar' channel, and in the small studies that exist, associated with lower blood pressure and a calmer sympathetic tone. Close the right nostril with the thumb to inhale, switch to close the left with the ring finger to exhale.
How to practice
- Inhale Left for 4 seconds (through the nose)
- Exhale Right for 6 seconds (through the nose)
Benefits
- Quieter than full alternate-nostril practice
- Cooling for heat and irritability
- Supports evening down-regulation
- Needs no equipment or space
When to practice
5-10 minutes, late afternoon or evening. Avoid if your nose is blocked.
About Chandra Bhedana (Left-Nostril Breath)
Left-nostril breathing — chandra is the moon, and in the yogic framework the left channel is the cooling one. The measurable side of the claim is thinner than the tradition: nostril-specific effects on autonomic balance have been studied repeatedly with mixed and generally small results.
Best for: Evenings, heat, and irritability — and for people who value the tradition, which is a legitimate reason to choose a practice.
Why it works
Heart rate is not steady within a breath — it rises on the inhale and falls on the exhale, an effect called respiratory sinus arrhythmia. Weighting the breath towards the out-breath (6s out against 4s in) spends more of each cycle in the falling half, which is why a long exhale is the most reliable lever anyone has for bringing heart rate down on purpose. At roughly 6 breaths a minute this is slow enough for that effect to be worth having without being so slow that holding the pace becomes the effort.
What to expect
The first two or three rounds usually feel like the exhale runs out early. That settles as the breath finds the pace — resist the urge to force the last second of air out, and let the out-breath finish rather than pushing it. A full session as timed here runs 80s.
Common mistakes
- Emptying the lungs completely on the long exhale. Finish the 6s out-breath with a little air still in reserve. Squeezing to empty recruits the abdominal wall, which is effort — and effort is the thing the pattern is trying to remove.
- Breathing bigger rather than slower. The target is 6 breaths a minute, not maximum volume. Pulling in as much air as possible on a 4s inhale over-ventilates and produces the light-headedness people mistake for the technique working.
- Switching to mouth breathing when it gets hard. The nasal route is part of the dose — it warms, humidifies and adds resistance, which slows the breath on its own. If the nose cannot keep up, reduce the pace rather than opening the mouth.
How it compares
Light Breathing (Buteyko) is exhale-weighted — 4s out against 3s in, holding 3s of the 10s cycle, against exhale-weighted — 6s out against 4s in here. Both are rated intermediate, so the choice is about which shape suits you. Read about Light Breathing (Buteyko).
Questions
- How long should I practise Chandra Bhedana (Left-Nostril Breath) for?
- A session as timed here is 8 rounds and runs 80s, at roughly 6 breaths a minute. 5-10 minutes, late afternoon or evening. Avoid if your nose is blocked.
- What is the Chandra Bhedana (Left-Nostril Breath) pattern?
- inhale left for 4 seconds, exhale right for 6 seconds — written as 4-6 — repeated 8 times.
- What is the most common mistake with Chandra Bhedana (Left-Nostril Breath)?
- Expecting a strong effect. Taken as a gentle long-exhale practice with a traditional framing, it is pleasant and useful; taken as a hemispheric switch, it will disappoint.
- Is Chandra Bhedana (Left-Nostril Breath) safe for everyone?
- There is no specific restriction recorded for this technique. Stop if you feel dizzy or short of breath. This is general information, not medical advice — check with a clinician if you are pregnant, managing a health condition, or unsure.
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