As any trend, person, ideology, etc. mounts in popularity, it can easily diverge from its original state.
Perhaps this is simply a flexibility that allows for such expansion and appeal to a broader audience. Perhaps it is an imminent fall from grace that occurs once the subject is spread too thin. Yoga today is a $27 billion dollar industry. This is big business and a number that reflects its quick rise in popularity.
Pain, numbness, tingling? Do any of these describe the feelings you have when you come out of an asana? Please heed these warnings! Not all yoga poses are safe for all people. Just follow expert yoga teacher Patricia Sullivan’s story in the October 2010 issue of Yoga Journal. She painfully details a journey of denial in which her headstand caused (yes, caused) crippling nerve pain that eventually culminated in her falling asleep at the wheel and driving off the road into a lagoon.