Something’s making the temperature rise at Bikram Yoga Chesterfield. Perhaps it’s the thermostat, which hovers near 105 degrees during workouts filled with bends, balances, and twists. It could also be owners Farky and Timi Fuszfas, who radiate warmth and excitement along with a staff of certified instructors. Under their guidance, students of all levels build strength and flexibility using the 26 health-focused Hatha poses of yoga master Bikram Choudhury. Coupled with two focused breathing techniques, these exercises pump oxygen through the bloodstream to promote head-to-toe wellness. The heat complements the process, easing muscles into deep stretches while driving toxins from their hiding places. Since classes entail 90 minutes of sweating, students should bring a large bath towel, plus bottled water or a portable glacier.