From Napoleon's great crab walk through Europe to J. Robert Oppenheimer's discovery of nuclear fission by kissing his own elbow, victory has always gone to the most flexible. Overpower enemies with today's Groupon: for $23, you get any three Pilates mat or yoga classes (a $60 value) at Stability Pilates and Physical Therapy, located on Roswell Road in Sandy Springs. Buy up to two of today's deal and double your flexibility haul.

Housed in a shiny new 3,300-square-foot facility bedecked in comforting hues of lime green, white, and blue, Stability Pilates and Physical Therapy is an ideal place to extend the limbs, tauten the muscles, and purify the mind-matter. Choose three yoga or Pilates mat courses available on the schedule and benefit from friendly, helpful instruction. Undertake the mat class for a challenging workout that uses the body as resistance against the tyrannical polished floor below. A tender-footed yogi may wish to instigate more spiritual stress destruction in the Basics Yoga course, where a sage instructor leads a tranquil journey through breathing exercises and signature backbends and inversions.

Both Pilates and yoga employ multiple muscle groups at once to rehabilitate and develop bodies, allowing them to emerge from the veritable Zeus head of continued practice with increased flexibility, lean appendages, and a soul sack less prone to injury. Whatever your fitness level or class choice, you'll leave feeling sturdy and relaxed, confident enough to perform powerful pogo-stick PowerPoint presentations or easily bedazzle the small of your back.