Breath Exercise: Rhythmic Breathing - Tibetan Breathing Rhythm
Breathe in through the nose for a slow count f of 8.
Hold for a count of 32.
Breathe out through the nose for a slow count of 16.
Continue for several minutes, with no pause after the exhale.
Be free to experiment with rhythms what matters is settling into a soothing, calming flow.
Rhythmic breathing is also great while walking (timed by your steps), running, biking, and most other forms of exercise.