4-7-8 breathing: how to do it, and what it can really do

4-7-8 breathing is one of the best-known relaxation techniques in the world, and one of the simplest: breathe in for four counts, hold for seven, breathe out for eight. It was popularised by the physician Andrew Weil, who adapted it from yogic breathing (pranayama), and it is often sold online as a way to fall asleep in a minute. That part is an exaggeration. But as a way to slow down, soften the body and give a busy mind something to follow, it works well for many people.

How to do 4-7-8 breathing

1. Get comfortable. Sit with your back supported, or lie down if you are using it for sleep. Let your shoulders drop.
2. Breathe out fully through your mouth, with a soft whoosh, to empty your lungs.
3. Breathe in quietly through your nose for a count of four.
4. Hold your breath for a count of seven. Keep the throat and jaw relaxed, as if you were simply pausing.
5. Breathe out slowly through your mouth for a count of eight. Some people purse their lips slightly, or rest the tip of the tongue just behind the upper teeth, which makes a long exhale easier to control.
6. Repeat for four rounds to begin with. That takes about a minute.

That is all. Over a few weeks, if it feels good, you can build up to eight rounds.

The counts are a ratio, not a stopwatch

The numbers do not need to be seconds. What matters is the proportion: the hold is almost twice as long as the inhale, and the exhale is twice as long as the inhale. If seven counts of holding feels like too much, count faster. Many people start at something closer to 2-3.5-4 and slow down as it gets familiar. Forcing the full length when it makes you gasp defeats the purpose.

Why it relaxes you

There is nothing magical about the numbers themselves. 4-7-8 breathing works through the same mechanisms as other slow-breathing techniques:

• It slows your breathing right down. Each round takes nineteen counts, so you end up breathing two or three times a minute, far slower than the usual twelve to twenty. Slow breathing is consistently linked to more activity in the parasympathetic nervous system, the "rest and recover" side (Zaccaro et al., 2018).
• It gives the exhale the starring role. The heart naturally slows a little on every out-breath. A long exhale spends more of each breath in that slowing phase, which is why breathing out slowly calms you.
• It keeps your mind busy. Counting to seven and to eight takes just enough attention to crowd out a worry, without being hard. That alone helps when your thoughts are looping.

What the research says

Direct research on 4-7-8 breathing is limited. One small study in healthy young adults found that the technique improved heart rate variability and lowered blood pressure, including after a night of poor sleep (Vierra et al., 2022). More broadly, structured breathing practices of about five minutes a day have been shown to improve mood and lower physiological arousal over a month, with techniques that emphasise a long exhale doing particularly well (Balban et al., 2023).

What there is no good evidence for is the popular claim that 4-7-8 breathing makes you fall asleep in sixty seconds. It can help you relax enough for sleep to arrive, which is not the same thing, and it is a perfectly good reason to use it.

When to use it

• At bedtime, to slow down after a busy day. There is a fuller routine in breathing exercises for sleep.
• When you wake in the night and your mind starts to run. See also how to stop overthinking at night.
• Before something stressful, such as an exam, a hard conversation or speaking in public.
• As a daily habit. A minute or two, once or twice a day, makes the technique easier to reach when you need it.

Common mistakes

• Breathing in too hard. The inhale should be quiet, not a big gulp. Large, fast breaths can make you dizzy.
• Straining during the hold. If the hold feels like effort, shorten it. A tense hold works against relaxation.
• Doing too many rounds at first. Four is enough. Lightheadedness at the start is common and passes with practice. If it happens, stop and breathe normally.
• Judging it on one try. Like most relaxation techniques, it gets easier and more effective with repetition.

Who should be careful

4-7-8 breathing is safe for most people. If you have a heart or lung condition, are pregnant, or find that holding your breath makes you anxious, skip the hold altogether: just breathe in for four and out for six or eight. That is the extended exhale, and it gives most of the same benefit. It is also what Calmalo guides you through, with a slowly growing circle, so you do not have to count at all.

If you regularly struggle to sleep or feel anxious most days, a breathing technique is a good tool but not the whole answer. A doctor can help, and treatments for insomnia and anxiety work well.

Frequently asked questions

What is 4-7-8 breathing?

A relaxation technique where you breathe in through your nose for a count of four, hold your breath for seven, and breathe out through your mouth for eight. It was popularised by Dr Andrew Weil and is based on yogic breathing.

How many times should I do 4-7-8 breathing?

Start with four rounds, which takes about a minute, once or twice a day. After a few weeks, if it feels comfortable, you can build up to eight rounds.

Does 4-7-8 breathing really help you fall asleep in 60 seconds?

There is no good evidence for that claim. What it can do is slow your breathing, relax your body and occupy a busy mind, which makes it easier for sleep to come.

What if I can't hold my breath for seven seconds?

Count faster. The proportion of 4 to 7 to 8 matters more than the exact seconds. You can also skip the hold and simply make your exhale longer than your inhale.

Is it normal to feel dizzy during 4-7-8 breathing?

Mild lightheadedness is common at first, usually from breathing in too forcefully. Make the inhale softer, do fewer rounds, and stop and breathe normally if it continues.

Sources

1. Balban, M. Y., et al. (2023). Brief structured respiration practices enhance mood and reduce physiological arousal. Cell Reports Medicine, 4(1), 100895. doi:10.1016/j.xcrm.2022.100895
2. Vierra, J., Boonla, O., & Prasertsri, P. (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. doi:10.14814/phy2.15389
3. Zaccaro, A., 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. doi:10.3389/fnhum.2018.00353