Baltimore is so humid that doing yoga, even at night with all the windows open and a fan blowing, is Bikram-style whether or not you want it to be. I have sweated so much every time I get on the mat that I can feel my brain contracting within my skull. I will say, though, that I do feel more limber in this atmosphere than I did when it was five degrees below zero in Chicago. Today, I was trying to do the wheel pose, and I realized I could almost keep bending my neck back to the point where my nose was pointing at the mat.