# How to do coherent breathing > To do coherent breathing, breathe in smoothly through your nose for about 6 seconds and out for about 6 seconds, with no pauses in between. That works out to roughly five breaths per minute. Keep the breath quiet and easy, not deep and forced. Start with 5 minutes and add time as it gets comfortable. Canonical: https://hellobirch.app/guides/coherent-breathing Updated: 2026-11-03 Publisher: Birch (Tsukemen.io) ## Coherent breathing, step by step 1. **Sit tall and soften** (15 sec): Sit upright with your shoulders relaxed, or lie on your back. Close your eyes or let your gaze rest on the pacer. 2. **Breathe in for 6** (6 sec): Breathe in through your nose for about six seconds, filling from the belly up. Aim for smooth, not big. 3. **Breathe out for 6** (6 sec): Breathe out for about six seconds at the same easy pace. No hold at the top or bottom; the breath just turns around. 4. **Keep the wave going** (5 min): Continue for about five minutes. Each in-and-out takes 12 seconds, so you're breathing about five times a minute. 5. **Return to normal** (30 sec): Let your breath go back to its own rhythm for a few breaths before you open your eyes. ## 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](https://hellobirch.app/guides/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](https://hellobirch.app/guides/daily-breathing-habit)). ## Coherent breathing vs 4-7-8 and box breathing - **vs [4-7-8](https://hellobirch.app/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](https://hellobirch.app/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. ## Coherent breathing with Birch Pick Heart Coherence 6-6 in Birch on iPhone or Apple Watch and set a time. On the Watch, haptic cues tell you when to turn the breath, so you can close your eyes. Sessions can count toward Mindful Minutes in Apple Health. Birch also has Slow-Paced 4-6 (six breaths a minute) if you want something in between. ## FAQ ### Is coherent breathing the same as resonance breathing? They are closely related and often used interchangeably. Both describe slow, even breathing at about five to six breaths a minute. Resonance-frequency programs may fine-tune the exact pace for each person. ### What is heart coherence breathing? It's another name for the same slow, even rhythm, often taught alongside heart rate variability. Birch's Heart Coherence preset is 6 seconds in and 6 seconds out. ### How long should you do coherent breathing? Start with about 5 minutes a day and build up as it feels comfortable. Regular short sessions are easier to keep up than occasional long ones. ### Do I need an HRV monitor or chest strap? No. You can practice with any steady pacer, like the one on this page or Birch. Monitors are optional extras. ### Can I do coherent breathing on Apple Watch? Apple's built-in Breathe session has a breaths-per-minute setting, so you can approximate an even rhythm there. Birch's Watch app has a dedicated Heart Coherence 6-6 preset with haptic cues. See [breathing on Apple Watch](https://hellobirch.app/guides/apple-watch-breathing). ## Practice with Birch Birch is a free iPhone and Apple Watch app with six breathing patterns (Weil Method 4-7-8, Box 4-4-4-4, Gentle Wave 7-11, Balance 3-3-6-3 (inhale 3, hold 3, exhale 6, hold 3), Heart Coherence 6-6, Slow-Paced 4-6) and simple daily habit tracking. No ads, no account, no subscription. App Store: https://apps.apple.com/us/app/birch-breathe-relax-sleep/id6449722381 ## Related guides - [How to do 4-6 breathing](https://hellobirch.app/guides/4-6-breathing) - [How to do box breathing](https://hellobirch.app/guides/box-breathing) - [How to do breathing exercises on Apple Watch](https://hellobirch.app/guides/apple-watch-breathing) ## Sources - [Lehrer & Gevirtz, 2014. Heart rate variability biofeedback: how and why does it work? Frontiers in Psychology](https://pubmed.ncbi.nlm.nih.gov/25101026/) - [Zaccaro et al., 2018. How Breath-Control Can Change Your Life: A Systematic Review on Psycho-Physiological Correlates of Slow Breathing. Frontiers in Human Neuroscience](https://pubmed.ncbi.nlm.nih.gov/30245619/) - [NHS — Breathing exercises for stress](https://www.nhs.uk/mental-health/self-help/guides-tools-and-activities/breathing-exercises-for-stress/) --- Birch supports general wellness and is not a substitute for professional medical advice.