4-7-8 breathing timer

What 4-7-8 breathing is

4-7-8 is a paced-breathing pattern with three parts: a four-count inhale, a seven-count hold, and an eight-count exhale. One round takes about nineteen seconds, so four rounds is a little over a minute. It was popularised by the physician Andrew Weil and draws on pranayama breathing practices; the numbers are a convention, not a formula anyone has optimised.

The distinguishing feature is the ratio. Because the out-breath is twice the length of the in-breath, you end up breathing far more slowly than usual — typically around three breaths a minute, well inside the range that slow-breathing research looks at.

How to do it

1. Sit with your back supported, or lie down if you are doing this in bed.
2. Breathe out fully once before you start, so you are not beginning on a full chest.
3. Breathe in through your nose for four.
4. Hold for seven. If seven is too long, shorten every number and keep the ratio: 2-3.5-4 works.
5. Breathe out through your mouth for eight, letting the air leave in a thin, steady stream.
6. Do four rounds. Build up slowly rather than pushing for more on the first day.

Counting speed is yours to choose. Slower counts mean a longer, harder breath cycle; faster counts keep the ratio while making it easy. Nobody is checking.

When to use it

4-7-8 is best suited to winding down rather than to an emergency: the last few minutes before bed, after a difficult conversation, or when you have got into bed and your mind has started up. NHS advice on sleep problems points in the same direction — a consistent sleep and wake time, and “time to relax before bed”^[5]. A breathing pattern is one concrete way to spend that time.

Skip the long hold if you feel breathless, light-headed or already panicky. Holding your breath for seven counts when your body is convinced it is not getting enough air is a hard sell. Use the physiological sigh or a simple in-for-four, out-for-six instead, and come back to 4-7-8 when things are calmer.

What the research says

There is no large randomised trial of the 4-7-8 pattern by name. There is decent evidence for the category. The 2018 systematic review of slow breathing found consistent autonomic changes — higher heart-rate variability, more parasympathetic activity — alongside reports of greater comfort and relaxation and “reduced symptoms of arousal, anxiety, depression, anger, and confusion”^[1]. The best-designed breathwork trial to date, Balban and colleagues in Cell Reports Medicine (2023), randomised 108 people to five minutes a day of one of three breathing practices or mindfulness meditation for a month, and found the breathing practices improved mood, with the extended-exhale “cyclic sighing” condition performing best^[4].

The NIH’s complementary-health centre is blunt about the wider literature: relaxation techniques look promising for anxiety, but many of the studies are rated low or very low quality^[3]. Read that as: a long, slow exhale may help you feel steadier and is very low risk. It is not a treatment, and this page will not tell you it is.

Variations

• 4-7-8 without the hold — in for four, out for eight. Keeps the ratio, drops the hardest bit.
• 2-3.5-4 — the same shape at half the length, for anyone who runs out of air.
• 4-6 — the minimum viable version: an out-breath longer than the in-breath, nothing else to remember.
• Nose-only — quieter, if you are sharing a room or a train carriage.

Does 4-7-8 breathing help you fall asleep?

It may help you settle, which is a precondition for sleep rather than a cause of it. Treat it as part of a wind-down alongside a consistent bedtime, dim light and getting worries out of your head — the approach set out in how to sleep with anxiety. No breathing pattern reliably switches sleep on.

How many rounds should I do?

Four is the usual starting point. If you want a daily practice rather than an occasional one, five minutes a day is the dose the strongest trial used^[4].

Why does it make me light-headed?

Usually because the breaths are bigger or faster than they need to be. Make the in-breath smaller and the counts quicker, or drop the hold. If light-headedness keeps happening, stop and talk to a doctor.

The same pattern in relif

In relif, 4-7-8 runs with haptic pacing — the phone buzzes the phase changes, so you can do it in a dark room with the screen off and your eyes closed. The app remembers the patterns you return to, so your wind-down does not need setting up again each night.

Related

• Box breathing timerFour equal counts, for before something stressful
• Physiological sighTwo inhales, one long exhale
• 4-7-8 breathing, step by stepThe longer written guide
• How to sleep with anxietyA wind-down that does not rely on willpower

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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