The old texts say the active nostril turns roughly every hour, and that the turning follows the lunar day. Modern physiology calls the same thing the nasal cycle and still argues about what drives it. We're asking practitioners to log theirs, and we'll publish what the record shows — including if it disagrees with the texts.
No account needed. One tap.
Sit for a moment, notice which nostril is more open, and tell the tool what you found. It works out your sunrise and lunar day, applies the Svarodaya timing rules, and shows you where the two agree and where they don't — with the rule behind every line.
Find which nostril is currently more active.
Your camera is used only to guide your observation. No physiological diagnosis is made from the camera image. Camera processing stays in your browser — this tool reads no frames, saves no images, uploads nothing, and identifies nobody.
Sit comfortably and breathe normally.
15 seconds
Go by what you actually feel, not by what you expect. You can change your answer before continuing.
The svara cycle is counted from sunrise, and the rule depends on the lunar day — so the tool needs your date, time and rough position. Correct anything that looks wrong.
Your position is used in this browser to work out sunrise. It is not sent anywhere and is not stored.
Guided visualisation — not a sensor measurement.
Press start when you are settled.
Three different kinds of statement get mixed together in most breath apps. We keep them apart.
What you personally report after sitting and noticing.
What the Svarodaya rules say should be flowing, with the rule shown.
Nothing here. A webcam cannot measure nasal airflow, and this tool does not pretend otherwise.
Sensor mode is reserved for later. A bilateral nasal airflow sensor could eventually provide a physiological measurement instead of a self-reported observation. Until one is connected, no sensor values are shown — real or simulated.
No wearable, no subscription, no account needed to try it. Sign in only when you want your own history kept.
From practitioners across 19 cities. The counter is live — people come back to watch the record grow.
Every issue carries what the data showed that quarter, written plainly. Contributors credited if they want to be.
Traditional guidance, offered as tradition. It's exactly what we're testing — treat it as a hypothesis, not a prescription.
Aggregate only, updated nightly. No individual's logs are ever shown here, and no one's account is identifiable from this chart. Contributing is opt-in, off by default, and you can withdraw and delete at any time.
All contributors, last 30 days, n = 41,208 logs
Stated up front, so the answers mean something
We ask for the least that makes the research possible. You can download everything we hold on you, or delete all of it, from your account page — no email required, no reason needed.
Nostril side, timestamp, city-level location, and — only if you choose — a mood and energy score.
Sell it, share it with advertisers, track you across other sites, or collect anything from under-18s.
