In response to well-cooked fetus' article that reads: Although both males and females produce the sex hormone testosterone, human production rates can differ by a factor as large as 100, making the effect of this hormone significantly more crucial to attain a balance in the male body than in the female ( 4 ). In the absence of testosterone, estrogen causes female development; in the presence of testosterone, testes will develop — regardless of genetic sex. It has been established ( 3 ) that at a certain prenatal period, the infiltration of superfluous testosterone has a masculinizing effect on female fetuses. An overactive adrenal gland (either in the mother or fetus) or the usage of anti-miscarriage drugs (which mimic testosterone) are presumed responsible for a testosterone excess. This would be a very interesting and credible theory. However, you've neglected to emphasize one rather important caveat. These hormonal imbalances effect ONLY physical features of men and women. Where in your entire article do you present evidence for the effect of chemical hormones on the nature of sexual (emotional) attraction....Not in one section, even once. Rather you've speculated, "It is also possible that the amounts of hormones studied are not abnormal, but fall somewhere in the spectrum of human sexuality." I would agree, however, that, " It is crucial to consider that personality and behavior are more than simple chemical reactions." I would even assert that chemical reactions are but the resultant product of one's personality and behavior developed and shaped by the external world and experience. You are saying that the single-cell started as a full-grown chicken. That is illogical and irrational. So, to reiterate my point... Your theory regarding prenatal over-androgenization or estrogenization is, politely, insubstantial and mirrors how scientists presently are scrambling to patch the hole that is the crumbling theory of "evolution," but that's another Q and A. We can't cover the inevitablity of a creator with ridiculous theories and speculations. Nor, can we run from his command to live holy and righteous lives. This can only be done through the blood of Jesus Christ. Yes, to use the most loaded of all words, He LOVES you, regardless of what you've done or how you live. You only have to accept Him and turn from sin...why not? Don't take scripture and science out of context and allow it to justify sin in your life. It will only be to your detriment.