By Yuzhi Yang
The EnterTrainer not only has a goofy name, it also makes you sweat so you can keep watching TV. The wireless device keeps tabs on your heart rate so if you start slacking off, it will mute the TV or turn it off altogether. You have to keep your heart rate up within a targeted zone by working out consistently on the exercise machine. Hey, who knew watching Grey's Anatomy could be good for your own anatomy?
Difficulty Level: Easy
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