The sweat drips down your back. Not knowing this was even possible, you look down and see beads of perspiration forming on your thighs. You feel slightly dizzy, but push through, taking a huge swig of water before heading into tree pose. Sounds like a typical hot yoga class, yes? Women everywhere swear by the warm practice, where rooms are heated to between 80 and 105 degrees. And while you’ve surely heard a girlfriend say how much she loves the toasty Vinyasa because she feels like she “sweats out all the bad” at her go-to studio, the question remains: Is it really safe? Is there such a thing as yoga that’s too hot?