Without a variable workout, exercise quickly becomes nothing more than a Sisyphean routine of lifting boulders, running up hills, and running away from sudden boulder avalanches. Add some variety to your hunt for vitality with today's Groupon to Bodies by Perseverance. Choose between two options:

• For $20, you get three fitness classes (a $60 value).
• For $30, you get one month of unlimited classes (a $105 value).
  
  

Bodies by Perseverance molds muscles with cardio, yoga, boot-camp, and kickboxing classes in an airy studio marked by oversize windows, wood floors, and high ceilings. Classes meet six days a week, with daytime and evening sessions alike filling the busy schedule. Monday-afternoon power yoga caters to athletes, strengthening their upper bodies, opening their hips, and shaping their chakras to look like basketballs. Conversely, boot-camp classes strengthen the body using free weights, body-weighted exercises, and fast, powerful plyometrics movements. No matter the class, a coterie of instructors brings inspiration and motivation, with many instructors having worked for the army, completed Tae Bo certification, or arm-wrestled an aristocrat to win the heart of a lonely princess.