how to breath

Breathe calmly and rhythmically, preferably through your nose at rest. Let your belly expand gently as you inhale and draw in slightly as you exhale; this is diaphragmatic breathing. 1

• Rhythm: In stressful moments, deliberately return to a steady inhale–exhale rhythm; if comfortable, slow the pace and lengthen your exhales. 2
• Avoid overbreathing: At rest, don’t breathe more than necessary. Excess breathing can remove too much carbon dioxide, which can reduce oxygen delivery to the brain and other tissues. 3