What is Coherent Breathing?
Coherent breathing (also called resonance or resonant-frequency breathing) simply means breathing slowly and evenly at around 5 to 6 breaths per minute, with no holds. There is no counting to master and nothing to force — just a long, gentle wave in and out.
It is the backbone of heart-rate-variability (HRV) biofeedback, a method used in clinics to help with stress, anxiety and blood pressure. It is also one of the easiest techniques to practise for longer periods, making it ideal as a daily 10-minute habit.
How to do Coherent Breathing, step by step
- Sit comfortably or lie down. Relax the jaw and shoulders.
- Breathe in through the nose for about 5.5 seconds, letting the belly and then the ribs expand.
- Without pausing, breathe out through the nose for about 5.5 seconds.
- Keep the breath smooth and quiet — imagine a slow wave rising and falling.
- Continue for 10–20 minutes. If your mind wanders, simply return to the rhythm.
Practise along with the timer above — one cycle takes 11 seconds. Turn on Voice to keep your eyes closed.
What the science says
Every person has a “resonance frequency” — usually between 4.5 and 7 breaths per minute — at which the heart-rate rhythm and the blood-pressure reflex (the baroreflex) reinforce each other. Breathing at this rate produces the largest swings in heart rate with each breath, i.e. the highest HRV (Lehrer & Gevirtz, 2014). Higher HRV is associated with better emotional regulation and stress resilience.
A controlled study found that just 15 minutes of resonance-frequency breathing raised HRV, lowered blood pressure and improved mood compared with a control condition (Steffen et al., 2017). Regular daily practice is where the deeper benefits appear.
Benefits of Coherent Breathing
Tips for better practice
- Your personal resonance rate may be a little faster or slower — try 5-5 or 6-6 and use whatever feels easiest.
- Pair it with soft ambient sound and eyes closed for a deeper session.
- Same time each day (e.g. after waking or before dinner) builds the habit fastest.
- If you use an HRV app or watch, you can measure your improvement over weeks.
Safety notes
Coherent breathing has no holds and is suitable for most people, including during pregnancy. If you feel breathless, breathe a little less deeply rather than more slowly.
Frequently asked questions
How long should I practise coherent breathing?
Is 5.5 seconds exact?
Can coherent breathing lower blood pressure?
References
- Lehrer P.M., Gevirtz R. (2014). Heart rate variability biofeedback: how and why does it work? Frontiers in Psychology.
- Steffen P.R. et al. (2017). The impact of resonance frequency breathing on measures of heart rate variability, blood pressure, and mood. Frontiers in Public Health.