The Science of Yoga: The Risks and the Rewards

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Authors: William J Broad
Tags: General, science, Yoga, Health & Fitness, Life Sciences
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the college for agitating against British rule.
    His benefactor again came to the rescue. This time he gave Gune a large donation that let the jobless educator take the biggest step of his life and found the scientific ashram.
    In his research, Gune made up for lost time, publishing a flurry of findings in Yoga Mimansa. Its language was English, signaling its wide target audience. He presented two studies in 1924, six in 1925, four in 1926, seven in 1927, and so on. Early on, he performed more than a dozen X-ray studies of yogis in various states of contortion. This surge was unique for the day.
    “We cannot make even a single statement,” Gune boasted, “without having scientific evidence to support it.” That, of course, was a fairy tale. But it showed the depth of his enthusiasm.
    The yoga taught at the ashram had been carefully repackaged. No untidiness was tolerated, nor ashes nor unkempt hair. Everything was squeaky clean—like science itself. Yoga’s unsavory aspects had suddenly vanished.
    Throughout his career, Gune maintained a virtual taboo on the word “Tantra”—the parent of Hatha that Hindu nationalists had come to abhor. Students heard nothing about thrills similar to “the bliss experienced in sexual orgasm,” as White had put it. They got no tips about extended lovemaking, as the Hatha Yoga Pradipika had instructed. All that was off the public agenda. The reformulated program had to do with giving yoga a bright new face that radiated with science and hygiene, health and fitness.
    Gune’s investigations could be quite technical, despite his lack of formal scientific education. An early one centered on high blood pressure. The question was whether the risks of challenging poses outweighed the benefits. To study the problem, Gune had eleven students do the Headstand and the Shoulder Stand, two of yoga’s most demanding poses.

     
    Headstand, Sirsasana
    Inversions, by definition, can unnerve. Quitesuddenly, new students find their worlds upended and their hearts racing. Once beginners have achieved a measure of skill and confidence, however, they tend to find the poses strangely relaxing or, at other times, exhilarating. The conventional wisdom is that inversions reverse the effects of gravity, invigorate the circulation, and flood the vital organs and brain with nourishment, bringing about a rush of rejuvenation.
    Gune and his aides found that the poses, though demanding, tended to be gentle on the heart. The traditional measure of blood pressure is how high it raises a column of mercury, and the usual daytime reading for a resting adult is around 120 millimeters. For the Headstand, Gune found that the average readings started at 125 millimeters, rose to 140 millimeters at the end of two minutes, and settled back down to 130 millimeters by the end of four minutes. That modest rise, he argued, compared favorably to howthe hundred-yard dash, for instance, resulted in blood pressure soaring as high as 210 millimeters.
    He wrote that the inversions still achieved the goal of “getting a richer blood supply” to undernourished parts of the body despite the “comparatively low rise” in pressure and the modest physical effort. Not that muscles were neglected. “We have ample evidence,” Gune boasted, that the poses represent “an unrivalled set of exercises even for the towers of strength!”
    Throughout his career, Gune showed a fondness for the zing of exaggeration. He was, after all, part showman. With the implied authority of his white lab coat, Gune worked hard to advance not only the substance of science but its style. He wanted to cultivate the idea that science had endorsed yoga—to demonstrate its approval and borrow some of its repute and progressive energy as a means of giving the discipline a new air of respectability. He desperately wanted yoga to project a new image.
    But Gune also exhibited real depth. Surprisingly, given his raw political objectives and lack of formal scientific

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