Astronauts regularly practice yoga to stay limber, modulate their breathing, and control their crippling fear of being eaten by the moon. Emulate the habits of cosmic pioneers with today’s Groupon: for $40, you get a five-class pass to Baptiste Power Yoga in Brookline and Cambridge (an $80 value).

Baptiste Power Yoga's team of certified instructors lead Vinyasa-based classes cultivated by celebrated yogi Baron Baptiste and performed in 90-degree studios. The studio's robust schedule gives students ample opportunities to unroll their personal or rented mats ($4) in classes such as Power Yoga Basics, which uses a slower pace to help beginners master the style’s fundamental physical postures and sets the foundation for more challenges as students advance toward coveted cobra belts. Balmy temperatures and challenging flows help detoxify the body in all levels of classes, during which students link a series of poses together with deep-breathing techniques. Intermediate sweat sessions offer challenging pose modifications to build muscle and boost delicate spirit-animal egos.