Sets and Reps: 3 to 4 sets of 6 to 8 reps Why: The dumbbell chest fly is another staple chest ... Press the weight up with both arms overhead. Perform 2 more reps with the left arm, while keeping ...

This week: dumbbell chest fly. If you sit down at a desk all day, you probably know that you’re making posture mistakes. As you lean into your laptop, your shoulders rise ever higher towards ...