The Science of Yoga draws on more than a century of painstaking research to present the first impartial evaluation of a practice thousands of years old. It celebrates what’s real and shows what’s illusory, describes what’s uplifting and beneficial and what’s flaky and dangerous—and why. Broad unveils a burgeoning global industry that attracts not only curious scientists but true believers and charismatic hustlers. He shatters myths, lays out unexpected benefits, and offers a compelling vision of how the ancient practice can be improved.