4-7-8 Breathing: What It Does and How to Do It
If you've heard people swear by '4-7-8 breathing' for falling asleep, they're not exaggerating, and there's a simple reason it works.
4-7-8 breathing means inhaling through the nose for 4 seconds, holding for 7, and exhaling through the mouth for 8. Repeat 3 to 4 cycles. The long exhale slows your heart rate, which is why it works well for winding down and falling asleep.
Where 4-7-8 comes from
Popularised by Dr Andrew Weil and rooted in yogic pranayama, 4-7-8 is a relaxing pattern built around one idea: a long exhale.
The pattern
- Inhale quietly through your nose for 4 seconds.
- Hold your breath for 7 seconds.
- Exhale slowly through your mouth for 8 seconds.
- That's one cycle. Repeat three to four times.
Why the long exhale matters
The exhale is where calm lives. A drawn-out out-breath activates the vagus nerve and your 'rest and digest' system, which slows your heart rate. The hold gives carbon dioxide a moment to build, and that has a settling effect too.
Tips for getting it right
- Purse your lips and exhale with a soft whoosh.
- Don't strain the 7-second hold. If you need to, shorten every count in proportion (say 2-3.5-4).
- Do it lying down if you're using it for sleep.
- Practise twice a day so it's automatic when you actually need it.
When to use it
4-7-8 is best for winding down: before sleep, or to take the edge off stress. In Exhale+Unwind, 4-7-8 Breathing is part of the Sleep category, with the animated rings keeping count for you. It's less suited to an acute panic attack, where a faster reset works better.
Common questions
Does 4-7-8 breathing really help you fall asleep?
It won't knock you out, but the long exhale slows your heart rate and quiets a busy mind, which makes falling asleep easier for many people. It works best lying down, as part of winding down.
How many times should you do 4-7-8 breathing?
Start with 3 to 4 cycles. Once it feels comfortable you can do a few more, but there's no need to push it or strain the hold.
What if I can't hold my breath for 7 seconds?
Shorten every count in the same proportion, for example 2 in, 3.5 hold, 4 out. The ratio matters more than the exact seconds.
Need it right now? Open the quick-start page: 4-7-8 breathing: how to do it.
This guide is for general wellbeing and is not medical advice. If you have a heart or lung condition, are pregnant, or your symptoms are severe, talk to a doctor.