You have to work harder if you weigh more

This news is a bit of a bummer: new research shows that overweight people get less benefit from strength training than thinner, leaner people do. They have to work harder for the same results.

On the bright side, the differences between groups in the study were small, and experts aren't even sure they even apply to absolutely everybody -- they could have been due to genetic differences, or other things. Also, just because weight loss and muscle mass aren't improving, that doesn't mean the body isn't benefiting from the exercise. Bottom line? Don't be discouraged, and don't give up!