Pattern
4-6 breathing
4-6 breathing: inhale four, exhale six, no holds. A short asymmetric wave where the longer exhale does the work.
The pattern
4-6
When to use it
- Last thing at night, in bed, lights low.
- After a hard day, before you try to read or scroll.
- When the mind is racing but the body is tired.
- Ten minutes is plenty. Bryan Johnson does ten before bed.
How to do it
- 01Sit or lie down. Let the shoulders settle.
- 02Breathe in through the nose for a slow count of four.
- 03Exhale through the nose or mouth for a slow count of six.
- 04Do not pause at the top or bottom. Keep the wave continuous.
- 05Stay small and even. The point is the ratio, not the depth.
- 06Continue for five to ten minutes.
What it does
The asymmetry is the active ingredient. A longer exhale tips the autonomic balance toward parasympathetic activity, which slows heart rate and lifts heart-rate variability. Four-in, six-out is the smallest pattern that gives you a clean two-second weighting on the exhale without feeling like a struggle.
There is reasonable evidence in the wider HRV literature that slow paced breathing with extended exhales raises measures of vagal tone, particularly when practised daily for ten to twenty minutes. Most positive trials are small and lean on self-report. The mechanism is well-supported in the Paul Lehrer-style resonance literature even if the specific 4-6 ratio has not been studied in isolation.
Treat it as a low-cost wind-down. Best a few minutes before you want to sleep, on the bed or the floor, with the lights down.
Try it
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