摘要：I sat apprehensively on the foam floor mats of the group fitness classroom. Those first day jitters swirled in my stomach as I waited for the instructor. My friends had persuaded me to give fitness classes a try. “The teachers are just such great motivation,” they promised. A thirtysomething, rather large woman entered the room, bulging bags in tow, with a take-charge look on her face. “That lady definitely needs a good workout,” I remember thinking, smugly. But when she took her place at the front of the room, it suddenly became clear—she was the instructor.
