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You use your chest muscles, or pecs, all the time—when you push a door, lift a child, or even just sit up straight. They're a key part of your upper body strength. By exercising your chest regularly, ...

One of the best workouts of this week was a series of exercises that made calisthenics and running just a little bit harder than normal. After a good warmup with the basics of calisthenics and cardio, ...