Sit with a straight spine, soften your shoulders and relax your face. Breathe in and fill your lungs to their maximum. Hold as long as comfortably possible - but not for so long that you feel you feel dizzy, may pass out or feel panicky. Try work your way up to 3 minutes over time. Please note: If you are pregnant or have high blood pressure or eye problems you may wish to skip this practice. If you choose to follow it don't hold your breath for longer than 2 counts.