It's a myth that it doesn't matter which you choose—but both have their benefits.

A new study suggests training with lighter weights can be nearly as effective as lifting heavy, provided you do more reps.

Changing your rep range and your workout intensity can help you build more muscle, says an exercise scientist with decades of ...

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Exercise can be a great way to lose weight, especially paired with the right diet. But if you are looking to build muscle, you may want to exercise while maintaining your current weight instead of ...