Yoga's capacity for improving balance makes its adherents especially exciting pogo stickers and especially boring seesaw partners. Achieve equilibrium with today’s Groupon: for $45, you get one month of unlimited hot-yoga classes at YogaFlex in Commack (a $175 value).

At YogaFlex, students of all experience levels stretch and sweat their way through three different types of hot yoga, an exercise method practiced in heated rooms. During classic hot yoga, experienced instructors demonstrate a series of 26 yoga postures in a sauna-like atmosphere maintained between 100 and 105 degrees. The intense experience strengthens nervous systems and keeps hearts pumping, using high temperatures to promote circulation like a newspaper covering a heat wave. Developed by Jimmy Barkan, Barkan hot yoga incorporates variations from other yoga styles to encourage a greater range of motion, and the vigorous Barkan hot Vinyasa takes the Barkan principles and adds fluid transitions between poses.

Yogis can dig deeply into their practice or replay entire feature films in their minds during regular 90-minute classes. Special 60-minute sessions also dot the schedule to accommodate people with tighter agendas. The soothing lilac walls at YogaFlex’s spacious new studio help induce meditative states. Students can shower in men’s and women’s changing rooms before changing out of their workout clothes and back into their work spacesuits.