What is 4‑7‑8 breathing?
The 4‑7‑8 method was popularised by physician Andrew Weil from pranayama practices. The numbers are a ratio, not mandatory seconds: exhalation lasts twice the inhale, with a pause between.
It is reasonable to treat it as a relaxation tool, but claims that it “cures insomnia” or acts as a “natural tranquiliser” outrun available evidence. Slow breathing and relaxation have broader support; robust trials isolating this exact pattern are scarce.
How to do it step by step
- 1
Sit with your back straight. Rest the tongue tip behind your upper front teeth.
- 2
Exhale comfortably through your mouth with a soft whooshing sound.
- 3
Close your mouth and inhale through your nose for 4 counts.
- 4
Hold gently for 7 counts without tightening your throat.
- 5
Exhale through your mouth for 8 counts. Complete no more than 4 cycles when beginning.
Possible benefits and what the evidence says
Attention away from rumination
Following the sequence demands attention and may provide a focus point at bedtime or during a pause.
Extended exhale
It creates a slow rhythm and emphasises a long out-breath, a component of several relaxation practices.
Repeatable routine
Using it at a regular time can become part of winding down, without guaranteeing that it resolves insomnia.
How to use it sensibly
Adjust the speed
Keep the ratio but count faster if you feel air hunger; each count need not last one second.
Limit rounds
Start with four. VA guidance notes that too many early cycles may cause light-headedness.
At bedtime
Learn while seated, then use it lying down if comfortable, alongside evidence-based sleep habits.
Common mistakes
- Turning the count into an apnea test.
- Continuing through dizziness.
- Taking maximal, tense inhalations.
- Presenting it as a proven treatment for insomnia or hypertension.
Precautions and when to stop
- Return to normal breathing immediately if dizzy or short of breath.
- Do not use it if you think it may trigger breathing problems; seek advice with heart or lung disease.
- It does not replace assessment for persistent insomnia, disabling anxiety or other medical problems.
Frequently asked questions
Are these exact seconds?
No. Clinical sources describe counts and allow pace adjustments. Keep the 4:7:8 ratio without strain.
Does it really help sleep?
It may promote relaxation and redirect attention. Evidence is insufficient to promise treatment of insomnia.
Why do I feel dizzy?
A major breathing-pattern change may cause dizziness. Stop, breathe normally and next time use fewer cycles or avoid holds.
Sources and review
Sources checked on 19 August 2026. Links lead to the original source; Respira summarises the material in original wording.
- How To Do the 4‑7‑8 Breathing ExerciseCleveland Clinic
Steps, pacing adaptations and possible adverse effects.
- Passport to Whole Health: Chapter 12U.S. Department of Veterans Affairs
Pattern description and light-headedness warning.
- 5 Things To Know About Relaxation Techniques for StressNCCIH, National Institutes of Health
Scope and limitations of relaxation techniques.
- Breathing Practices for Stress and Anxiety ReductionBrain Sciences / PubMed Central (2023)
Systematic review of breathing interventions for stress and anxiety.