4-7-8 Breathing: A Complete Guide

Inhale for 4. Hold for 7. Exhale for 8.

4-7-8 breathing is a paced-breathing pattern popularized by Dr. Andrew Weil, with roots in pranayama — the breath-regulation practices of yoga. Its defining feature is an exhale that's twice as long as the inhale, with a long hold in between.

What 4-7-8 breathing is

One cycle has three phases:

Inhale quietly through the nose for a count of 4
Hold the breath for a count of 7
Exhale completely through the mouth — often with a soft whoosh — for a count of 8

A full cycle takes 19 counts, which puts the breath rate around three breaths per minute at a relaxed counting pace. Compared with box breathing's even square, 4-7-8 is deliberately lopsided: the long exhale is the point.

What's happening in your body

The pattern leans on the same slow-breathing physiology described in the research literature, with extra weight on the exhale:

Exhalation and the vagal brake. Heart rate naturally slows during exhalation as vagal (parasympathetic) influence on the heart increases. Stretching the exhale longer than the inhale extends the portion of each breath where that slowing occurs. Reviews of slow-breathing physiology describe this shift toward parasympathetic dominance through vagally mediated pathways (Russo et al. 2017).
Heart-rate variability. Slow breathing amplifies respiratory sinus arrhythmia — the inhale-fast, exhale-slow rhythm of the heart — and this amplification is central to how heart-rate variability (HRV) practices are thought to work (Lehrer & Gevirtz 2014).
Measurable brain changes. A systematic review found slow-paced breathing associated with increased HRV, increased EEG alpha power, and activity changes in brain areas involved in emotion processing and interoception (Zaccaro et al. 2018).
The hold is tradition, the slow rate is the science. The 7-count hold gives the pattern its distinctive rhythm and makes the long exhale possible without rushing. The best-studied mechanisms come from the slow overall rate and extended exhale.

How to do it, step by step

Sit with your back reasonably straight, or lie down if you're using it before sleep.
Rest the tip of your tongue against the ridge behind your upper front teeth (the traditional form — optional, but part of the original technique).
Exhale completely through your mouth first, with a whoosh.
Inhale quietly through your nose for a count of 4.
Hold for a count of 7.
Exhale audibly through your mouth for a count of 8.
Repeat for up to 4 cycles when starting out. The counts can be brisk at first — the ratio (4:7:8) matters more than the absolute speed. Slow the counting down as it gets comfortable.

If the 7-count hold feels like too much, shorten everything proportionally — 3-5-6, or even 2-3-4 — and keep the shape.

When people reach for it

The long exhale gives 4-7-8 a distinctly winding-down character:

Before bed, as part of a wind-down routine
Back in bed after a 3am wake-up
After putting the phone down for the night
On a long flight, seat reclined as far as it goes
In the quiet after a full-tilt day

Safety note

Stop and breathe normally if you feel dizzy, lightheaded, or short of breath — the long hold makes this more common with 4-7-8 than with gentler patterns. Skip the breath-holds — or check with your doctor first — if you're pregnant or have a heart condition, blood pressure concerns, or a respiratory condition such as asthma or COPD. Breathing exercises are a wellness practice, not medical care.

Keep reading

Box breathing: a complete guide — the even 4-4-4-4 pattern for steady daytime focus.
The science of breath-synced music — why slow breathing works, and how music tempo can lead it.
All guides in the Learn hub

References

Lehrer, P. M., & Gevirtz, R. (2014). Heart rate variability biofeedback: how and why does it work? Frontiers in Psychology, 5, 756.
Russo, M. A., Santarelli, D. M., & O'Rourke, D. (2017). The physiological effects of slow breathing in the healthy human. Breathe, 13(4), 298–309.
Zaccaro, A., Piarulli, A., Laurino, M., et al. (2018). How breath-control can change your life: a systematic review on psycho-physiological correlates of slow breathing. Frontiers in Human Neuroscience, 12, 353.

BreathBeats is a wellness app — not a medical device, and not a substitute for professional care.