Yoga is a much easier way to exercise both mind and body than testing Einstein's theory of relativity by racing a beam of light. Avoid a science-related sprain with today's Groupon: for $49, you get one month of unlimited yoga classes at Infinite Yoga (a $108 value). Choose from five locations.

Infinite Yoga's certified instructor, Maxine Deutschendorf, cultivates relaxation, balance, and holistic wellness by teaching an array of yoga classes that accommodate students of all skill levels. Aspiring yogis dissolve stress and limber muscles during 75-minute weekly yoga classes or two-hour weekend sessions that incorporate meditative Asana poses and focused Pranayama-breathing techniques. Specialized one-hour men's yoga sessions pinpoint traditionally overworked areas such as the hips, lower back, and mustache to melt away aches and trigger circulation. Coworkers can collectively harness energy and increase concentration with Infinite Yoga’s workplace yoga, which builds camaraderie and can boost productivity from often-idle paperclip sculptures.

Maxine travels to several locations, where she invites participants to fortify their cores with attentive instruction on provided yoga mats, but encourages clients to bring personal mats if possible.