4-7-8 breathing, step by step

The steps

1. Rest your tongue just behind your top front teeth, if that is comfortable. It is part of the traditional instruction, not a requirement.
2. Empty your lungs with one full breath out before you begin.
3. In for four through the nose, quietly. Belly, not shoulders.
4. Hold for seven. Soft face, soft jaw.
5. Out for eight through the mouth, in a thin steady stream — some people make a soft whoosh, which helps pace it.
6. Four rounds to start. Build up over days rather than in one sitting.

Follow the pacer instead of counting: the 4-7-8 timer.

Where the pattern comes from

4-7-8 was popularised by the physician Andrew Weil, drawing on pranayama breathing practices. The specific numbers are a convention rather than an optimum anyone has established experimentally. What makes them work is the ratio: a hold in the middle and an exhale twice as long as the inhale puts you at roughly three breaths a minute.

Why the long exhale matters

The 2018 systematic review of slow breathing found that breathing under about ten breaths a minute was associated with increased heart-rate variability and respiratory sinus arrhythmia, parasympathetic activation, and reports of “increased comfort, relaxation, pleasantness” alongside “reduced symptoms of arousal, anxiety, depression, anger, and confusion”^[1]. At 4-7-8 you are well inside that range.

There is also direct evidence for extended exhalation specifically. The 2023 randomised trial in Cell Reports Medicine assigned 108 participants to five minutes a day of one of three breathwork practices or mindfulness meditation for 28 days. The condition built on a long exhale — cyclic sighing — produced the greatest improvement in positive affect, beating mindfulness meditation, and the largest reduction in respiratory rate^[2].

What nobody has shown is that the specific numbers 4, 7 and 8 outperform other slow patterns, or that 4-7-8 treats anything. The NIH’s complementary-health centre summarises the wider relaxation literature as promising but frequently low or very low quality with small samples^[4]. “May help you feel steadier” is the claim the evidence supports.

Common mistakes

• Counting too slowly on the first attempt. Seven slow seconds of holding is a lot. Count briskly; keep the ratio.
• Taking a huge in-breath. The inhale is the shortest phase for a reason. Comfortably full, not maximum.
• Racing the exhale. Eight counts of air leaving means a thin stream, not a sigh at the front and nothing at the back.
• Doing twenty rounds on day one. Four is the standard starting dose; light-headedness is the usual price of ambition here.
• Using it mid-panic. The seven-count hold is the wrong tool when you already feel starved of air.

When to use it

This is a wind-down pattern. The best uses are the last few minutes before bed, the gap after a difficult conversation, or lying awake at 3am with your mind switched on. NHS sleep advice points the same way — regular sleep and wake times and “time to relax before bed”^[5] — and a breathing pattern is a concrete way to fill that time rather than scrolling.

It is a poor fit for acute panic, where a physiological sigh or grounding ask far less of you. It is also a poor fit for anything requiring alertness immediately afterwards — a lot of people find it makes them drowsy, which is the point at night and a nuisance before a meeting.

Variations

• 2-3.5-4 — same ratio, half the length. The best version for beginners.
• 4-0-8 — no hold. Almost all of the benefit, none of the difficulty.
• 4-6 — the minimum: out-breath longer than in-breath, nothing else to remember.
• Nose-only exhale — quieter if you are sharing a room.
• Paired with a worry dump — write the loop down first, then breathe. See how to stop overthinking at night.

Common questions

Will 4-7-8 put me to sleep?

It may help you settle, which is a condition for sleep rather than a cause of it. No breathing pattern reliably switches sleep on, and treating it as a sleep switch tends to backfire — you end up monitoring whether it is working, which is the opposite of what you want at that hour.

How many rounds, and how often?

Four rounds is the usual starting dose, once or twice a day. If you want a practice rather than a rescue, five minutes a day is the amount the strongest trial actually tested^[2].

Why do I yawn?

Common and harmless. It usually means the pattern is doing something to your breathing rate rather than that you are short of oxygen.

Does the tongue position matter?

Not mechanically. It keeps the mouth in a consistent shape for the exhale and gives you one more thing to attend to. Ignore it if it is annoying.

When to get help

If you are lying awake most nights, or anxiety is shaping your days, a breathing pattern is not enough on its own. Talk to a doctor about it. Cognitive behavioural therapy — including the version developed for insomnia — has the strongest evidence base of any psychological approach for anxiety problems^[6].

Try it in relif

In relif, 4-7-8 runs with haptic pacing, so you can follow the phases in a dark room with your eyes closed and the screen off. The app remembers the patterns you come back to, which means your wind-down is one tap rather than a setup.

Related guides and tools

• 4-7-8 breathing timerRun the pattern now
• How to sleep with anxietyWhere 4-7-8 fits in a wind-down
• Box breathing, step by stepFour equal counts instead
• Physiological sighNo counting at all

How this page was written: by the relif team, not by a clinician. We do not publish a “medically reviewed” badge we cannot stand behind. Instead we name and date every source, prefer systematic reviews and randomised trials over single studies, and match the strength of the wording to the strength of the evidence — “may help” and “research suggests”, never “cures” or “treats”.

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