Sleep

4-7-8 breathing, explained

4 min read

Dr. Andrew Weil's 'relaxing breath': inhale for 4, hold for 7, exhale for 8. The long exhale is the active ingredient. How to do it and why it helps you sleep.

The 4-7-8 method was popularised by Dr. Andrew Weil as a 'natural tranquiliser for the nervous system'. You breathe in for four, hold for seven, and breathe out for eight.

The long exhale does the heavy lifting. It is one of the most reliable methods for winding down at night or taking the edge off a sudden spike of stress.

How to do it

  1. 1Rest the tip of your tongue just behind your top front teeth.
  2. 2Breathe in quietly through your nose for a count of four.
  3. 3Hold your breath for a count of seven.
  4. 4Breathe out through your mouth for a count of eight, with a soft whoosh.
  5. 5That is one cycle. Start with four cycles and build up slowly.

The science

An exhale nearly twice as long as the inhale strongly engages the vagus nerve and the body's 'rest and digest' response, slowing the heart and settling the mind.

The seven-count hold lets carbon dioxide rise a little, which deepens the calming effect and is part of why the method feels almost sedating with practice.

Common mistakes

Doing too many cycles too soon. It can make you light-headed at first, so keep to four cycles until it is comfortable and stay seated or lying down.

Rushing the exhale. The eight-count out-breath is the point — let it be long and complete.

When and how often

Use it in bed to fall asleep, or any time stress surges. Twice a day is a reasonable routine; the calming response tends to strengthen the more you practise.

Common questions

Does 4-7-8 really help you sleep?

Many people find it does, thanks to the long, calming exhale. It is not a cure for insomnia, but it is a gentle, no-cost tool to try at bedtime.

What if seven seconds is too long to hold?

Keep the 4-7-8 ratio but speed up the count so it fits comfortably, then slow down as your capacity grows.

Sources: Dr. Andrew Weil — Breathing Exercises (4-7-8)

Practise 4-7-8 breathing with a guided timer.

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