[imtrying]

Hi Cheryl, I'll try to answer your question. The main factor in the difference of muscle mass in males and females is testosterone. If you google testosterone and muscle development, you will find many articles explaining it more in detail. Males produce more testosterone = muscle protein synthesis = greater muscle size and mass. Female bodybuilders so often take steroids which is simply more testosterone so they can achieve more muscle like men. This is also the reason that no matter how much females work out with heavy weights they cannot build the kind of muscle males can. I know lots of girls who wouldn't dare touch weights because they think it will make them look "bulky" but it is just not possible! Hope this helps.