I'd like to think that when it comes to building muscle for women, the common misconception about lifting heavy weights has been put to rest. It was assumed that women who lifted heavy got bigger, because you'd see thick female powerlifters, Olympic lifters, bodybuilders, and Crossfitters who had slabs and slabs of muscle on their frame. While those styles of training are surely conducive to hypertrophy – aka muscle building – nutrition, recovery, and supplements ALL play a huge role in body size. Fact: Weights don't make women bulky; cupcakes make women bulky. That is to say, nutrition plays an important part. So some of these women are more muscular because they choose to be, or because their genetics have predetermined that's the case. Their training styles are certainly not the be-all, end-all of their physique.