The Hindu-Yogi Science of Breath

The following are the seven favorite exercises of the Yogis for developing the lungs, muscles, ligaments, air cells, etc. They are quite simple but marvelously effective. Do not let the simplicity of these exercises make you lose interest, for they are the result of careful experiments and practice on the part of the Yogis, and are the essence of numerous intricate and complicated exercises, the non-essential portions being eliminated and the essential features retained.