The rule that explains all of them
Longer exhales than inhales calm you down; longer inhales than exhales wake you up. Every technique below is an application of that one lever.
Match the technique to the moment
Four defaults cover almost every situation:
- Acute spike, need to stay sharp — physiological sigh: two inhales through the nose, one long exhale. Works in about 30 seconds.
- Before a hard conversation or a heavy set — box breathing, 4-4-4-4. Steadies without sedating.
- Wired at bedtime — 4-7-8. The long exhale drops heart rate fast.
- General resilience — coherence breathing, roughly 5.5 seconds in and out for 10 minutes a day.
Dose and consistency
Five minutes daily beats forty minutes on Sunday. The effect is trainable: the same technique works faster after two weeks of practice because you've rehearsed the down-regulation response.
Safety
Practise seated or lying down, never while driving. Light-headedness means back off the holds. If you have a respiratory condition or panic disorder, get guidance before using breath retention.