4-7-8 breathing

Where the pattern comes from

Dr. Andrew Weil published the 4-7-8 breath, also called the relaxing breath, as a simple exercise you can do without equipment. His instructions are specific. Sit with a straight back while you are learning. Rest the tip of the tongue against the ridge of tissue behind the upper front teeth if that is comfortable, and keep it there. Inhale quietly through the nose. Exhale through the mouth with a soft whoosh. He says the absolute speed is less important than keeping the ratio of 4 to 7 to 8.

Weil also makes stronger claims than the clinical trials can currently carry. He describes the exercise as a natural tranquilizer and suggests using it for stress and for falling asleep. Treat that as a teacher’s enthusiasm, not as a result from a large trial of 4-7-8 breathing. The nearby evidence is about slow breathing in general, which is real and more modest. A 2018 systematic review of slow breathing found that breathing under about 10 breaths a minute was associated, in healthy adults, with higher heart-rate variability and with reports of less anxiety and arousal. Protocols differed, and the authors did not single out 4-7-8.

How to do 4-7-8 breathing

1. 1

   Set up, then empty the lungs

   Sit or lie down somewhere you will not need to stand up suddenly. Exhale through the mouth and let the air leave. Weil starts here, with a full exhale, before the counted inhale. The NHS breathing exercise for stress is a good companion instruction: do not force the breath, and let it move toward the belly only as far as is comfortable.

2. 2

   Inhale for a count of 4

   Close the mouth and breathe in quietly through the nose for a count of 4. Quiet is the word Weil uses. If you can hear a big pull of air, make the next one smaller.

3. 3

   Hold for a count of 7, if it is easy

   Pause for 7. This is the part that loses people. Weil’s own note is to speed the exercise up and keep the ratio if holding is difficult, rather than to suffer through a long pause. If any hold makes you panicky, skip it. Breathe in for 4 and out for 8 with no pause. You are still practicing the idea that makes this pattern different from ordinary breathing: the exhale is twice the inhale.

4. 4

   Exhale for a count of 8

   Breathe out through the mouth for 8, steadily, with a soft sound if that helps you track the length. Do not blast the air out. One inhale-hold-exhale is a single cycle.

5. 5

   Stop at four cycles while you are new

   Weil suggests repeating for a total of four breaths, and not doing more than four at a time during the first month of practice. He also says to practice at least twice a day, and that feeling a little light-headed at first can happen and then pass. Take the light-headed part seriously. If the room tilts, stop, breathe normally, and use a shorter count next time. Four gentle cycles beat eight ambitious ones.

When people use it, and when to pick something else

4-7-8 is a wind-down pattern. The long exhale and the small number of cycles suit the minutes before sleep, the end of a hard meeting, or the moment you notice your shoulders have been at your ears for an hour. It is a poor choice in the first seconds of a panic attack if holding your breath makes the alarm louder. Use a physiological sigh or the steps in how to stop a panic attack instead, then come back to 4-7-8 when the peak has dropped.

Compare it with box breathing if you want equal sides and a shorter hold. Box breathing is often easier to remember in public because every side is the same number. 4-7-8 asks for more patience on the exhale, which is exactly why people who like it use it at night.

Cautions

• Do not practice breath-holds if you are pregnant, you have a heart or lung condition, or a clinician has told you to avoid them, unless that clinician has said this pattern is fine for you.
• Do not use 4-7-8 to push through chest pain, fainting, or severe shortness of breath. Those are reasons to contact emergency services.
• Do not drive, swim, or operate tools while you practice. A relaxed, slightly spacey feeling is not compatible with a car.
• If you live with panic attacks, a long hold can itself become a trigger. Shorter counts, or no hold, are a valid version of this exercise.

A plain reading of the evidence

It is fair to say that slowing the breath, especially lengthening the exhale, is a reasonable self-help tool supported by a broader research literature and by public guidance such as the NHS stress-breathing exercise. It is not fair to say that 4-7-8 has been shown to cure insomnia, panic, or high blood pressure. If sleep is badly broken or worry runs your day, a clinician can talk with you about CBT and other care. A breathing pattern can sit beside that care. It should not be the only thing you try for months while you get worse.