Part of what intrigues me about this article is that they claim "new" studies show that BMI (body mass index) and the scale doesn't always tell the whole story. This is not "new" to me or any weightlifter, body builder or athletic person. However, I am glad that they are finally acknowledging the issue that muscle mass and body fat is more of a tell than your BMI. If you have low body fat (regardless of the number on the scale), you are not obese or overweight. In addition, they address the matter of "skinny fat". If you have a high body fat content, but the number on the scale is within "normal" BMI range, you are at higher risk of Type II diabetes.
Bottom line: The more lean muscle you have, the less likely you are to develop obesity related disease. The lower your body fat, the less likely you are to develop Type II diabetes.
"New" study or not, I'm glad the word is getting out there to the general population.
Studies: Beyond scales, fitness and body fat key for health
Just Me Rambling
Middle-aged woman who can't twerk: mother, step-mom, wife, grandmother - who happens to like to lift.