4-7-8 breathing is a slow pattern from Dr. Andrew Weil: breathe in through your nose for 4, hold for 7, and breathe out through your mouth for 8. Research on this exact pattern is limited, but slow breathing may help you feel calmer, and many people use it to wind down before sleep. Follow the circle below, about a second per count.
Sit or lie down somewhere you won’t need to move.
Weil’s own advice is to start with four breaths at a time and build up to eight later. He also says the ratio matters more than the speed: if the hold feels hard, count faster and keep the 4:7:8 proportions. The timer runs at about one second per count.
Honestly, not much about this exact pattern. One small study of 43 healthy young adults found lower heart rate and systolic blood pressure right after a single session of 4-7-8 breathing, with mixed results for heart-rate variability and no comparison group (Vierra and colleagues, 2022). A 2025 comparison in 84 students found that breathing at about six breaths a minute raised heart-rate variability more than 4-7-8 did, and none of the patterns meaningfully changed mood or blood pressure (Marchant and colleagues, 2025).
The general idea is better supported: slow breathing, under about ten breaths a minute, is linked with feeling more relaxed (Zaccaro and colleagues, 2018). 4-7-8 is one easy-to-remember way to slow down. Claims that it puts you to sleep in 60 seconds go well beyond the evidence.
| Pattern | Rhythm | Breath holds | Often used for |
|---|---|---|---|
| 4-7-8 breathing | In 4, hold 7, out 8 | Yes, one long | Winding down before sleep |
| Box breathing | 4-4-4-4 | Yes, two short | A steady, even rhythm |
| Coherent breathing | About 5.5 s in, 5.5 s out | No | Longer, steady sessions |
| Physiological sigh | Two inhales, one long exhale | No | A quick reset, or 5 minutes a day |
If breath holds feel uncomfortable, try one of the two patterns without holds.
4-7-8 breathing is a slow breathing pattern developed by Dr. Andrew Weil: inhale through the nose for a count of 4, hold for 7, and exhale through the mouth for 8. One round is four breaths.
There’s no solid evidence that it makes you fall asleep faster. Slow breathing may help you feel calmer, and a short, repeatable routine can be a useful way to wind down. If sleep problems persist, talk to a doctor.
They’re counts, and Weil says the ratio matters more than the exact time. This timer runs them at about a second per count. If holding for 7 is hard, count faster and keep the proportions.
Feeling a little lightheaded at first is common; if it happens, stop and breathe normally, and never force the hold. Practice sitting or lying down, never while driving or in water. If you’re pregnant or have a heart or lung condition, skip or shorten the holds and check with a clinician first.