In India a whole branch of yoga called Svara Yoga has developed over thousands of years that examines deeply into the subtlety of breathing and its related affe

In India a whole branch of yoga called Svara Yoga has developed over thousands of years that examines deeply into the subtlety of breathing and its related affects [0]. 0: https://www.vedicbooks.net/svara-yoga-p-15882.html https://www.vedicbooks.net/svara-yoga-p-15882.html (Disclaimer: I just found this book on Svara Yoga in english; I haven't read it myself.)