Box breathing vs 4-7-8 breathing: which one should you use?

Both techniques turn up in every list of “breathing tricks for stress”, usually with the same promise attached. They are not the same tool. One is built around evenness, the other around a long, slow exhale, and that difference decides where each one is most useful.

This page puts them side by side: the counts, what each feels like, what has and has not been tested, and who should go easy on the holds. If you want a gentler starting point or the wider picture of why breathing calms you at all, our practice on breathing to calm down covers that.

The two patterns at a glance

	Box breathing	4-7-8 breathing
Inhale	4 counts, through the nose	4 counts, through the nose
Hold	4 counts	7 counts
Exhale	4 counts	8 counts, through the mouth
Second hold	4 counts	none
One cycle	about 16 seconds	about 19 seconds
Feels	even, steady, a bit like keeping time	heavy, slowing, slightly sleepy
Typical use	staying composed while you still need to perform	winding down, falling asleep, after a stressful event
Hardest part	remembering the second hold	the seven-count hold
Direct research	one month-long randomised trial	one single-session physiology study

The counts are a guide, not a rule. A count is roughly a second for most people, but what matters is the ratio.

How box breathing works in practice

1. Breathe in through your nose for 4.
2. Hold, softly, for 4.
3. Breathe out for 4.
4. Hold, with lungs comfortably empty, for 4.
5. Repeat for two to five minutes.

Because every side of the “box” is equal, the pattern keeps your attention busy without pulling you towards drowsiness. That is why it is popular with people who need to stay switched on: a nurse between patients, a teacher in the minute before a difficult parents’ evening, a footballer waiting to take a penalty.

Take Daniel, who presents to his company’s board each quarter. He does not want to feel sleepy before he stands up; he wants his voice steady. Two minutes of box breathing in the corridor gives his mind a simple job, slows his breathing right down, and leaves him alert.

How 4-7-8 works in practice

1. Breathe in quietly through your nose for 4.
2. Hold for 7.
3. Breathe out through your mouth for 8, slowly and fully.
4. Repeat for four cycles to begin with.

Here the exhale is twice as long as the inhale, and the long hold slows things down further. Most people find it more sedating than box breathing, which is the point when you are trying to fall asleep and less helpful when you are about to give a talk.

Consider Amara, a junior doctor who comes off a late shift with her mind still racing. Four rounds of 4-7-8 in bed give her racing thoughts a slow rhythm to follow. If you want more on settling for sleep, see our guide on how to sleep better.

What the research actually tested

The honest answer is that neither technique has much research behind it on its own, and they have never been compared head to head as far as we could find.

Box breathing was one of the arms in a 2023 randomised trial in Cell Reports Medicine. About a hundred adults practised for five minutes a day for a month, using cyclic sighing (a double inhale followed by a long exhale), box breathing, a fast-breathing technique, or mindfulness meditation. All groups reported less anxiety and negative mood. The exhale-focused cyclic sighing gave the largest gain in positive mood and the biggest drop in resting breathing rate. Box breathing helped, but did not stand out. The groups were small and the authors themselves describe it as an exploratory study.

4-7-8 breathing has even less. The one study we found, a 2022 paper in Physiological Reports, had around forty healthy students do three short sets of 4-7-8 in a single session. Their heart rate and systolic blood pressure dropped, and heart-rhythm measures shifted in a way associated with a more relaxed state, especially in those who were not sleep-deprived. It did not measure anxiety, sleep or mood, so it cannot tell you whether 4-7-8 helps you nod off or calm a panic. Claims that it is “proven” for either go beyond the evidence.

The wider literature fills in some of the gap. A systematic review of slow breathing found that breathing at fewer than ten breaths a minute is linked with heart-rhythm changes and reports of feeling calmer, from small and varied studies. A 2023 meta-analysis of breathwork trials found small-to-medium reductions in stress and anxiety overall, while warning against hype. Both box breathing and 4-7-8 sit comfortably within “slow breathing”, which is probably where most of their benefit comes from.

Choosing between them

A practical way to decide:

• You need to stay sharp (an exam, a hard conversation, a sports moment): box breathing.
• You want to switch off (bedtime, the evening after a rough day): 4-7-8.
• Holding your breath makes you uneasy: neither, at least not yet. Start with plain slow breathing, such as the NHS technique of breathing gently in and out to a count of five for at least five minutes.
• You keep forgetting the counts: box breathing, because every count is the same.

Many people end up using both: box breathing in the daytime, 4-7-8 at night. That is a perfectly sensible split, and nothing in the evidence argues against it.

When to go easy on breath holds

Long holds are the part of both techniques most likely to cause trouble. Some people find that holding the breath makes them feel trapped or more anxious, which defeats the purpose. Others get light-headed.

Simple adjustments:

• Shorten the holds, or drop them and just breathe in for 4 and out for 6 to 8.
• Count faster in 4-7-8 so the hold stays easy.
• Keep holds soft. You are pausing, not clamping your throat shut.
• Stop and breathe normally if you feel dizzy, tingly or short of breath.

If you have a heart or lung condition, are pregnant, or have ever fainted during breathing exercises, check with a doctor before practising long holds. The same applies if your anxiety is frequent or severe: breathing techniques help in the moment, but they are not a treatment for an anxiety disorder. Our guide to understanding anxiety explains what support looks like. If you feel unsafe or in crisis right now, go to our crisis help page.

Try each one when nothing is at stake

The fairest comparison is your own. Practise each technique a few times on an ordinary day, when you are not anxious, and pay attention to which one you would actually want to repeat. The one that feels natural is the one that will be there when you need it.