B.K.S. Iyengar

” The normal rate of breathing is 21,600 breaths inhaled & exhaled every 24 hours. The yogi measures his/her span of life not by the number of days, but of breaths. Since breathing is lengthened in pranayama, its practice leads to longevity.” B.K.S. Iyengar   Related articles Light on Pranayama (pranayamayogastudio.wordpress.com) Pranayama (tirisulayoga.wordpress.com)