Janssen men have higher rates of muscular mass than women Janssen men have higher rates of muscular mass than women men have higher rates of muscular mass than women men have higher rates of muscular mass than women men have higher rates of muscular mass than women men have higher rates of muscular mass than women forty percent less men have higher rates of muscular mass than women men have higher rates of muscular mass than women men have higher rates of muscular mass than women men have higher rates of muscular mass than women men have higher rates of muscular mass than women men have higher rates of muscular mass than women men have higher rates of muscular mass than women men have higher rates of muscular mass than women men have higher rates of muscular mass than women Janssen