Bikram Yoga Williamsburg, as a Yoga College of India outpost, invites students of all levels to stretch and bend in its soothing, heated room tucked away just steps from the L train's Bedford stop. During each 90-minute session, uplifting instructors guide students through Bikram's traditional 26 challenging poses designed to build more strength, balance, and focus. Deep-breathing exercises fortify lung capacity, helping students exhale pent-up stress and retrieve pennies from the bottom of the ocean. Muscles loosen as warmth seeps into the skin, making sweat flow and toxins flee.