A Guide to Understanding Women January 26, 2010 by Carlos Xuma · Published January 26, 2010 · Last modified July 6, 2012
How I Lost My Mojo (and Got it Back): The Importance of Testosterone, Sex Drive, and How to Preserve Both April 15, 2013 by Carlos Xuma · Published April 15, 2013 · Last modified April 16, 2013
