As with all breath-work, stop immediately and return to normal breath if you become dizzy or don’t feel well. We do not recommend this breath-work while driving.
Sit or lie down comfortably. Your inhales and exhales will be the same length, without any break between. Inhale for 7 seconds, exhale for 7 seconds... immediately repeat 10 times without breaks (or until you feel more relaxed).
Spend some time in normal, relaxed breath when finished.