Chapter 1 -- Gender Identity, Gender Asymmetry, and the Sexual Imbalance of Power -- Increasingly today, men and women are struggling to live in a twilight world of gender confusion. Anxiously they wonder what, if anything, constitutes their own unique sexual identity. Women don business suits and become bankers and lawyers. men clean house and learn to change diapers. These shifts in traditional work roles may be all to the good. But are there any real differences between men and women? If not, what joy is left us in sexual union? Have we become interchangeable parts, androgynous to the core?