Say It Isn’t So – Less Sleep Means Less Testosterone?   Yep, it’s true – give healthy young men less sleep time and down goes the testosterone.  The data come from the University of Chicago, where checking hormone changes wrought by partial sleep deprivation has become a minor research industry by itself (http://news.consumerreports.org/health/2011/06/sleep-deprivation-may-lower-testosterone.html). The guys […]