The Science of Yoga

infections, fevers and other diseases will be cured,” the book declared with no hint of qualification, or proof.

    Extended Side Angle, Utthita Parsvakonasana
    Krishnamacharya may have been stubborn,gruff, and domineering but he trained a student who proved to be particularly important to the spread of Hatha yoga—his brother-in-law, B. K. S. Iyengar (1918– ). The young man had been sickly all his life, and at first the yoga sessions in Mysore went poorly. Krishnamacharya soon lost interest in his new student. But Iyengar kept at it and eventually became healthy. Increasingly, like his guru, he looked to yoga for its restorative powers. He began touring India with Krishnamacharya and displaying his newfound skills, effortlessly tying his body in knots.
    Iyengar, a young man of eighteen, at this point began to draw on the insights of medicine. It helped him ground his approach more deeply in the modern view of the body. His strategy was similar to what Gune and his colleagues had done—but in miniature.
    The immersion began in 1936 when a surgeon by the name of V. B. Gokhale watched in astonishment as Iyengar gave a yoga demonstration and afterward helped facilitate Iyengar’s relocation to the large city of Pune, which became Iyengar’s home for the rest of his life. The physician became a friend, a supporter, and a knowledgeable liaison to the world of human anatomy.
    Intimate knowledge of the human body—such as how its more than two hundred bonesfit together and fall into conflict—let Iyengar refine the poses. The Triangle was a good example. His method avoided subtle misalignments that could restrict movement. The beginner’s pose, known formally as Trikonasana, began in a standing position as the student spread arms and legs far apart and bent the torso to one side, reaching up with one arm and down with the other. The pose was then repeated on the opposite side. The potential conflict centered on the thigh bone and a large knob at its upper end known as the greater trochanter, a spot where muscles attached. As the student bent over, the pelvis could easily strike the knobby protrusion, which stopped all downward movement. The solution was simple. It called for the student to turn the foot ninety degrees so it pointed outward. That rotated the overall leg and turned the greater trochanter backward so that the pelvis and torso were free to sweep downward. The result was a deeper thrust and a better stretch.

    Triangle, Utthita Trikonasana
    Drawing on such insights,Iyengar became a master of precision. Good alignment became his signature. He learned much about what was reasonable, what was ambitious, and what was dangerous.
    Gune, who had become chairman of the Board of Physical Education in the Bombay region, saw Iyengar perform around 1945 in a public demonstration. History gives no details of the encounter between the two men—two pioneers who sought to align Hatha yoga with modern science. It does note, however, that Gune arranged for the institution where Iyengar performed to receive a financial grant.
    In 1947, India won independence and the nation’s powerful no longer promoted yoga as a way to build Hindu pride. Patronage ended or fell dramatically. In the mountains south of Bombay, Gune’s ashram tightened its belt, uncertain of the future. In Mysore, politicians took over for the royal family.
    Coincident with this plunge in domestic support, Hatha yoga went global. The exports began with a gifted student who had studied with both Gune and Krishnamacharya. Like Iyengar, the neophyte had come to yoga for reasons of ill health and had become a fervent champion of its restorative powers. Moreover, the student was a vivacious woman. She helped turn Gune’s observations about yoga being “peculiarly fitted for the females” into multitudes of women devotees.
    Born of a Swedish bank director and a Russian noblewoman, Eugenie Peterson (1899–2002) was a rising Indian movie star with the stage name Indra Devi when she developed a serious heart condition. She met Gune and studied at his ashram, likening it to a health spa. Devi found herself in classes with other women and distraught at her poor flexibility. A woman instructor advised patience.
    The neophyte then sought to study with Krishnamacharya.
    He refused.
    “He said that he had no classes for women,” Devi recalled.
    She persisted.
    Eventually the guru relented.
    Devi learned well, moving to Hollywood in 1947 and teaching such