01/22/2012 11:48 PM
Yoga can be harmful, instructor says
The vast majority of people in the United States who practice yoga should give it up altogether, Glenn Black, who has taught yoga for nearly 40 years, told William J. Broad of The New York Times. Too many of the nearly 20 million Americans who practice yoga are hurting themselves, said Mr. Black, who studied in India under the legendary B.K.S. Iyengar.