How to do coherent breathing

What coherent breathing is

Coherent breathing means breathing slowly and evenly, with equal time in and out, at around five or six breaths a minute. You will also see it called resonance breathing, resonant frequency breathing, or heart coherence breathing. Some programs tune the exact pace to the person, but the even in-and-out rhythm is the same. Birch's version is Heart Coherence 6-6: 6 seconds in, 6 seconds out, five breaths a minute.

Breathing at a slow, steady rhythm is also the basis of heart rate variability (HRV) biofeedback, which Lehrer and Gevirtz review in a 2014 paper. A 2018 systematic review of slow breathing (under 10 breaths a minute) in healthy people found links with higher HRV and with reports of feeling more relaxed and comfortable. You don't need a heart rate monitor to practice. A steady pacer is enough.

Who it's for

Coherent breathing suits people who want a longer, meditative session without counting or holding. Because in and out are the same length, it feels natural for many people right away. It also works as a daily practice in the morning or at lunch, not just in tense moments.

Common mistakes

• Breathing too big. Slow does not mean huge. Over-filling your lungs can leave you light-headed. Keep each breath quiet and comfortable.
• Pausing at the turns. There's no hold. Let the inhale turn smoothly into the exhale.
• Watching the clock. Follow a pacer or haptic cue instead of counting, so your attention can settle on the breath.
• Giving up because 6 feels long. Start at 5 in and 5 out (six breaths a minute, like 4-6 breathing) and slow down over a week or two.

How long to practice

Most coherent breathing routines are sessions of several minutes, not a few breaths. Five minutes is a realistic start. Many people work up to 10 or more once it feels easy. The NHS's guidance for slow breathing is similar: at least 5 minutes, ideally daily. Consistency matters more than length, so attach it to an existing routine (see daily breathing habit).

Coherent breathing vs 4-7-8 and box breathing

• vs [4-7-8](/guides/4-7-8-breathing): 4-7-8 has a hold and a long exhale, done as a short set of four breaths. Coherent breathing is even, with no holds, done for minutes.
• vs [box breathing](/guides/box-breathing): box adds two holds and runs at about four breaths a minute at 4-second sides. Coherent breathing is a continuous wave.