Is It Unchristian to Do Yoga?

This is a cause of anxiety among some of the Baptist brethern -- that people in studying yoga are implicitly buying into Eastern religions like Hinduism.  Maybe it's the focus on bodily experience; if that's the case, then getting a good exercise workout produces the same kinds of results.  Or maybe it's the greeting, "Namaste."  Or possibly chanting the mantra "Ommmm . . . . "

Isn't tolerance and curiosity supposed to be Christian virtues too?  Why should peple be scared little bunnies?