" When the breath is shallow or irregular, the mind is unstable, but when the breath is calm and deep, the mind is calm and peaceful and the yogi lives long. Therefore, the rhythm of breathing must be controlled"
Swartmarama, Hatha Yoga Pradipika
Extract from the complete book of the MasterClass of TrueBreathing , a condensed version of 25 breathing techniques covering 9 themes
(Stress management, endurance, energy, sleep, emotional management, inflammation, concentration, meditation and immune system action)