I haven't done any scientific study of it though to be sure. (slaw.ca)
B.K.S.Iyengar threw himself into the practice of yogasana wholeheartedly, without reservation, and with total commitment, and through his incredible discipline; his relentless study of himself, his pupils, and the texts; and his passionate devotion to the subject, an experience of the deepest teachings of yoga opened to him. (unitywoods.com)
Our practice is participating in an international clinical study of a (salmonbrookvets.com)