What box breathing is, and why it works
Four phases of equal length (in, hold, out, hold) that form a square you can picture or even draw. In Breathune the program is called Focus; "box breathing" is the name most people know it by. The simplicity is the point: there is nothing to remember, you just follow the rhythm.
Box breathing was made popular by US military units as a quick way to stay calm under pressure. The physiology behind it, though, is the same as in other slow-breathing techniques for anxiety. A slow, even pace (one cycle lasts 16 seconds, under four breaths per minute) together with short holds activates the parasympathetic nervous system via the vagus nerve. Your body gets the message that the danger is over, your heart rate slows and your muscles relax.
Unlike the Šikuta Method in Breathune, which deepens cycle by cycle, box breathing keeps a constant, predictable rhythm from start to finish. That makes it handy right before a stressful moment, like an interview, an exam or a difficult conversation. It takes the edge off quickly, and you don't have to keep track of where you are in the exercise.
Step by step
Breathe in through the nose (4 seconds)
Breathe in slowly and smoothly through the nose. The belly should rise a moment before the chest.
Hold on full lungs (4 seconds)
Hold your breath without tensing your throat or shoulders. If that feels uncomfortable, shorten it to 2 or 3 seconds.
Breathe out through the mouth (4 seconds)
Release the air slowly, as if blowing through a straw. The exhale should match the inhale in length.
Hold on empty lungs (4 seconds)
Stay without air for a moment, then inhale smoothly again and repeat the cycle.
How many cycles? Four to six cycles (about 1 to 2 minutes) are enough to feel calmer. If you want more from it, practice 5 minutes a day, ideally at the same time: in the morning before a busy day, or in the evening before bed.
Box breathing in the Breathune app
In Breathune, box breathing is called the Focus program (pattern 4 · 4 · 4 · 4). The app keeps the exact rhythm with visuals, breathing sound and gentle vibration, so you don't have to watch a clock or count seconds. The display stays on during the session, a tap anywhere skips to the next phase, and in silent mode (haptics only) vibration alone guides you. The program is also on Apple Watch, Android and Wear OS.
More breathing programs
The Šikuta Method, 4-7-8, Coherent 5-5, Power Breath and Cyclic Sighing. Together with Focus, that makes six guided programs in one app.
See the programs →Download Breathune
Lite costs nothing, ever, and has no ads. Full unlocks all six programs with a one-time purchase.
Download →Frequently asked questions
How long should one box-breathing cycle last?
The classic pattern is 4-4-4-4 seconds (inhale, hold, exhale, hold), so 16 seconds per cycle. Beginners can start with 3-3-3-3. Breathune keeps the rhythm for you with visuals, sound and vibration, so you don't have to count.
Is box breathing safe for everyone?
For a healthy adult, yes. It is a gentle technique that puts no strain on the body. If you are pregnant or have breathing or heart problems, talk to a doctor before making breath-holds a regular habit. You can always breathe in sooner than the rhythm says.
Does box breathing cost anything in the Breathune app?
The Focus program (4-4-4-4) is part of the full version of Breathune. Lite costs nothing and includes the Šikuta Method, so you can try guided breathing first.