"Over the past three years, 13,000 Americans were treated in an emergency room or a doctor's office for yoga-related injuries, according to the Consumer Product Safety Commission."
This begs the question, how does this statistic compare to other popular workouts? Yes there are risks, as with any type of exercise, and yoga practitioners are (or at least should be!) taught not to push their bodies beyond their limits.
Yes, yoga may not burn as many calories as calisthenics, and it is not a weight-loss method - it is certainly not for everybody. But the increased flexibility, balance and strength (yes, strength - try a plank or down-dog pose series if you don't believe me) that can be gained from regular yoga practice are a big factor in its popularity. I find it too bad that this article fails to present a balanced view of both risks and benefits alike - I would expect better from a mainstream publication such as Time.