Breathe in for 4, hold for 7, and breathe out through your mouth for 8. The counts are a ratio, not a test: keep them comfortable.
How to practise 4-7-8 breathing
- Sit with your back straight, or lie down if you’re settling for sleep.
- Rest the tip of your tongue on the ridge just behind your upper front teeth, and keep it there.
- Before the first round, breathe out comfortably through your mouth, without pushing. Then close your mouth.
- Breathe in quietly through your nose for 4.
- Hold your breath gently for 7.
- Breathe out through your mouth for 8 with a soft whoosh. Purse your lips if that’s easier.
- Four rounds is enough to start; build to eight only after a month of regular practice. If the hold is hard, keep the ratio and count faster: in 2, hold 3.5, out 4. Set it in Adjust rhythm.
Each round, step by step
| Step | Seconds | What to do |
|---|---|---|
| Inhale | 4 | In quietly through the nose. |
| Hold after inhale | 7 | Hold gently. Tongue stays behind your teeth. |
| Exhale (mouth) | 8 | Out through the mouth with a soft whoosh. |
| Rest | Off | Pause before the next breath. |
Take care
Start with 4 rounds. If the hold feels hard, count faster and keep the ratio.
- Mild lightheadedness is common at first. If it happens, stop and breathe normally.
- The hold should never strain. Count faster with the same ratio, such as in 2, hold 3.5, out 4, rather than forcing it, or choose a practice without holds.
- With a heart or lung condition, or in pregnancy, check with your clinician first, or choose a practice without holds.
- Never practice breath holds in or near water.
- Breathe gently. If you feel dizzy or uncomfortable, stop and return to your normal breath.
Where it comes from
Andrew Weil, a physician, popularized this pattern and describes it as adapted from pranayama. He teaches the counts as a ratio rather than a speed, suggests four breaths at a time, twice a day, and building to eight only after a month.
What the research says
Evidence is limited. Small trials, mostly around surgery or medical procedures, report less anxiety compared with routine care, but not compared with a placebo practice. In the one direct comparison, slow breathing at six breaths a minute raised heart rate variability more than 4-7-8. Research on sleep is still limited: a small trial in nursing students reported better self-reported sleep quality after four weeks, compared with no practice. It doesn’t show an immediate effect on falling asleep, or that 4-7-8 works better than another relaxing breathing practice. It is not a treatment.
Sources
- Andrew Weil Center for Integrative Medicine, University of Arizona (n.d.). 4-7-8 Breath.
- British Heart Foundation (2026). 3 breathing exercises to relieve stress.
- Vierra J et al. (2022). Effects of sleep deprivation and 4-7-8 breathing control on heart rate variability, blood pressure, blood glucose, and endothelial function in healthy young adults. Physiological Reports 10(13):e15389.
- Aktaş GK, İlgin VE (2023). The effect of deep breathing exercise and 4-7-8 breathing techniques applied to patients after bariatric surgery on anxiety and quality of life. Obesity Surgery 33(3):920–929.
- Marchant J et al. (2025). Comparing the effects of square, 4-7-8, and 6 breaths-per-minute breathing conditions on heart rate variability, CO2 levels, and mood. Applied Psychophysiology and Biofeedback 50(2):261–276.
- Doğan U, Sungur M (2026). The effect of 4-7-8 breathing exercise training on sleep quality of undergraduate nursing students: a randomized controlled study. European Journal of Integrative Medicine 82:102620.
A wellness practice, not medical advice. Read practising safely before you begin.