Yoga, like early rock 'n' roll, involves plentiful twisting and was invented by the Beatles. Stay as limber as a mop-topped rocker with today's Groupon: for $20, you get a five-class yoga punch card at the OM place in Winchester (a $40 value).

Following a six-day-per-week class schedule offering one to two classes each day, the OM place's pliable instructors steep clients of all physical abilities in the practice of various yoga styles. Up to 24 students per class ease into asanas with Yoga Basics classes that teach fundamental postures, as well as Slow Flow sessions focused on connecting breathing with movement. Further up the metronome, Yoga Flow classes vigorously guide yogis through swift Vinyasa movements in a 76- to 80-degree room, and on the third Wednesday of each month, the class morphs into Yoga Pulse to sync the dynamic flow with live drumbeats. Slow Stretch class members use props and specialized breathing to help soothe weary bodies and relax minds feverish from prolonged Rubik's cube ordeals.

The large yoga room's light-wood flooring offers pupils ample space to stretch and pose. Windows splash sun on daytime participants, and a fireplace adds a homey touch without the cloying sweetness of apple-pie-scented yoga pants.