What resonance breathing is
Resonance breathing, also called resonance frequency breathing or coherent breathing, is slow, paced breathing at around six breaths a minute. That is roughly five seconds in and five seconds out, a rhythm of about 0.1 Hz.
At that pace, for most adults, the rhythm of the breath and the rhythm of the heart start to move together. Heart rate rises gently as you breathe in and falls as you breathe out, and heart rate variability tends to rise during the session.
It is one of the best studied breathing practices, used in heart rate variability biofeedback research for decades, and many people describe it simply as feeling calmer and clearer afterwards.
How to try it now
- Sit or stand comfortably, shoulders soft.
- Breathe in gently through your nose for about five seconds.
- Breathe out slowly for about five seconds, without forcing it.
- Keep going for five to ten minutes. If it feels strained, shorten the count a little.
If you feel light headed, stop and breathe normally. Slow breathing should feel easy, never effortful.
Seeing whether it reached you
The hard part of any breathing practice is knowing whether it worked. The NUIRA app paces you at 0.1 Hz, takes a baseline at the start, measures continuously while you breathe without showing you numbers mid-session, and checks on demand roughly every three minutes.
At the end you see where you started, where you finished and what changed in your heart rate and HRV. Over weeks, trend lines show whether your baseline is settling.
Why we call it resonance
There is a state most people have felt, where the body is calm, the mind is clear and something deeper feels right. Athletes call it flow. Musicians call it being in tune. We call it resonance, and it is not a place you stay, it is a place you return to.
NUIRA is a wellness platform. It is not a medical device, and it does not diagnose, treat or prevent any condition. If you are worried about your health, talk to a doctor.

