A steady, controlled breathing rhythm over a sustained period can have a calming, centring, and energizing effect for the breather.

This style of breathing exercise has been practised for centuries by shamans, meditators and layperson alike.

Breathe in through the nose for a slow count of 8.

Hold for 4 counts.

Breathe out through the nose for a slow count of 8.

Pause for 4 counts.

Continue for several minutes.