4-7-8 breathing

How to do it

1. Sit with your back straight, or lie down. Rest the tip of your tongue behind your upper front teeth and keep it there the whole time.
2. Let all your air out through your mouth, with a whoosh you can just hear.
3. Close your mouth and breathe in quietly through your nose for 4 seconds.
4. Hold your breath for 7 seconds, without tightening your throat or lifting your shoulders.
5. Breathe out through your mouth for 8 seconds, around your tongue, with the same soft whoosh.
6. That's one 19-second cycle. Repeat until you've done four cycles, and don't do more than four in a row while you're learning.
7. When you're done, breathe normally. If you did it in bed, just stay put and rest.

What 4-7-8 breathing is

It's a three-phase pattern with a fixed ratio: 4 to breathe in through the nose, 7 to hold, and 8 to breathe out through the mouth. The session is very short. Four 19-second cycles add up to 76 seconds.

Three things set it apart from its neighbors. The hold is nearly twice the inhale, longer than in 4-4-8 breathing. The exhale goes out through the mouth and makes a sound, while most calming breaths stay in the nose. And you count it in cycles, not minutes: you do a little, and you repeat it through the day.

Where it comes from

4-7-8 breathing is best known through the American physician Andrew Weil, who teaches it as the relaxing breath. His patient handout, published by the University of Arizona integrative medicine center that bears his name, is the reference behind nearly every version in circulation.

Cleveland Clinic says Weil popularized it in 2015 and that its roots are in pranayama, the breathing practices of yoga. There, counting the inhale, the hold and the exhale in fixed ratios is routine. We couldn't find which specific practice this count comes from, and Weil's handout doesn't say. The careful reading is that 4-7-8 is a modern form inspired by yoga.

Weil counts without a clock and explains that the exact time matters less than the ratio. Here the guide uses seconds so you can follow along with your eyes closed, without keeping count.

What people use it for

Bedtime is what it's known for. Many people do it once they're in bed with the lights off, or when they wake up at 3 a.m. and their head starts running through tomorrow's list.

It also gets used as a short break during the day: before answering a message that stings, after an argument, in a waiting room. Since it takes a little over a minute, it fits almost anywhere you can sit down.

The counting is part of what people describe. Keeping track of three different numbers takes attention, and while you're counting you aren't chewing on something else.

What the studies say

Evidence on this pattern is limited and recent. A 2022 study of 43 healthy people ages 19 to 25 measured what happened right after they practiced it lying down, in three sets of six cycles. Heart rate and systolic blood pressure went down. The study measured those signals in the moment, not whether people slept better that night.

A 2023 randomized trial split 90 people who had just had bariatric surgery into three groups of 30. The group that did 4-7-8 reported less in-the-moment anxiety than the deep breathing group and the group with no exercises. In 2025, another study compared several techniques in 84 college students: breathing at six breaths a minute raised heart rate variability more than 4-7-8 or box breathing did, and none of them changed mood or blood pressure in any meaningful way.

There's less on sleep. A 2025 trial of 69 people on hemodialysis found better self-reported sleep after eight weeks of a breathing program. That program combined 4-7-8 with three other exercises, so there's no telling how much each one contributed. These are small, very specific groups. Whether 4-7-8 helps the general population sleep is still, for now, the experience of the people who practice it.

What the first sessions feel like

The 7-second hold is what you notice most. At first it can seem long, and you may want to let the air go early. After a few days of practice it tends to turn into a quiet pause.

Mild lightheadedness is common when you start. Weil mentions it and says it passes. That's why you practice sitting or lying down, never standing.

Stop and breathe normally if the lightheadedness doesn't pass, or if you feel tingling, tightness in your chest or distress while holding. A breath hold shouldn't feel like a fight.

Variations

• Easier: if you can't comfortably reach 7 seconds, count faster and keep the 4-7-8 ratio. That's the adjustment Weil suggests.
• More cycles: according to Weil, after the first month you can work up to eight cycles in a row, and no more.
• No hold: if holding your breath bothers you, try 4-6 breathing or the long exhale 4-8.
• Short hold: 4-4-8 breathing keeps the 8-second exhale with a 4-second pause, all through the nose.
• Traditional: classical pranayama uses a different ratio with a hold, 1-4-2 (4, 16 and 8). It's far more demanding, and it isn't a required next step.

Common mistakes

• Breathing in too much. Four seconds doesn't mean filling up to the brim. Take a comfortable amount of air.
• Clenching during the hold. Your throat stays loose and your shoulders stay down. You simply stop breathing for a moment.
• Blowing hard. The air leaves slowly and evenly. If you run out before 8, start letting it go more slowly.
• Doing lots of cycles in a row. More isn't better here. Four cycles is the whole practice.
• Moving your tongue. The tip stays behind your upper front teeth, on the exhale too.
• Watching the clock in bed. Let the guide or your own count keep the pace. A lit screen works against you.

How often and when

Weil suggests practicing at least twice a day, four cycles each time. For the first month he asks you not to go past four cycles in a row.

A realistic plan: once in the morning, sitting up, so you learn it with a clear head, and once in bed. Give it a couple of weeks before deciding whether it's for you. If it doesn't sit well, there are other slow breaths with no hold.

Before you start

• Do it sitting or lying down. You may feel a little lightheaded the first few times.
• If the lightheadedness doesn't pass, or you feel tingly or short of breath, stop and breathe normally.
• Don't do more than four cycles in a row while you're learning, and never practice while driving or in water.
• If you're pregnant, have a heart, lung or blood pressure condition, or have a history of fainting or panic attacks, check with your care provider first.
• This practice is written for adults.