The most secretive body parts are muscles, which hide behind layers of skin and appear only occasionally to help lift cars off trapped kittens. Flex your biceps in the absence of a cat emergency with today's Groupon: for $39, you get a 60-day membership and one 30-minute personal-training session at Columbus Sports Connection, located in Clintonville.

Your 60-day membership to Columbus Sports Connection gets you access to impressively stocked facilities. You can limitlessly leverage the fitness factory's free weights, circuit of machines, elliptical trainers, stationary bikes, treadmills, and more, until you’re as chiseled as Mt. Rushmore’s hidden presidential abs. Recharge after a hard workout by letting the warm streams of a shower cascade down your shoulders in Columbus Sports Connection’s spacious locker room. The gym also offers on-site childcare and chiropractic and acupuncture services for additional fees.

To avoid reaching a motivation plateau, members can supplement their autonomous muscle morphing with unlimited access to challenging, diverse group exercise classes ranging from high-intensity spinning to relaxing, stress-shunning yoga. Today's Groupon also gets you one 30-minute personal-training session with an experienced trainer to help you up your ambition ante and the session incorporates the membership's equipment orientation and complimentary fitness consultation. The friendly trainers at Columbus Sports Connection dole out custom-made fitness tips to help individuals best utilize their inborn bags of bones, muscles, and lovable mush.