Releasing sweat is an effective way to lower body temperature, as is taking a cold shower or swallowing an igloo. Keep your physique regular with today's Groupon: for $24, you get 12 fitness classes at Coeur d'Alene Athletic Club (a $48 value).

The experienced instructors at Coeur d'Alene Athletic Club help patrons push toward optimal health with classes in the gym, on the court, and in the pool. Throughout the week, the facility hosts 23 one-hour classes in varying disciplines. Clients can see what it's like to run the court like a pro without being chased by arena security guards thanks to the men's basketball classes. Or they can bend bodies into the shape of every letter in the Greek alphabet in core yoga sessions, which can take place in a private room. The gym's 25-yard pool sets the aquatic stage for swimmers who want to learn how to build their endurance, and a weight room full of Nautilus and Flex equipment helps maximize muscle mass. Meanwhile, a fleet of cycles challenges riders to pedal their fastest and pop stationary wheelies.