Frankly, we think people are over reacting to the comments made by Dr. Lazar Greenfield. There is growing evidence that human semen has the potential to produce profound effects on women. We have replicated the effects showing female college students having sex without condoms are less depressed as measured by objective scores on the Beck Depression Inventory. We've also examined the data as a function of whether the students were using hormonal contraceptives, whether they were in committed relationships, and how long these relationships have lasted. The anti-depressant properties of semen exposure do not vary as function of any of these conditions. It is not a question of whether females are sexually active, since students having sex with condoms show the same level of depression as those who are not having sex at all. We have also received numerous semen testimonials from other women who attest to the anti-depressant effects of semen exposure and these accounts often include the use of control trials (i.e., comparisons generated by switching from condoms to unprotected sex, or vice a versa).
Only 5 percent of the ejaculate is sperm. What's left is seminal plasma, which is a rich concoction of chemicals, including many that have the potential to produce mood-altering effects derived from hormones, neurotransmitters, and endorphins. There are even female sex hormones in male semen. Within a hour or two after insemination, you can detect heightened levels of many of these seminal chemicals in a woman's bloodstream.
But it is also important to acknowledge that there is a dark side to semen chemistry. The vagina is a very hostile environment for sperm. During human evolutionary history women couldn't afford to conceive as a consequence of being inseminated by just any man, and the presence of semen in the female reproductive tract often triggers an immune reaction that treats the sperm as a pathogen. Not surprisingly, semen chemistry has evolved to neutralize vaginal acidity and suppress the woman's immune system. There is even reason to believe that because of the immunosuppressant properties of semen, frequent insemination may compromise the female immune system. Because there are female as well as male sex hormones in human semen, there are other reasons to believe that additional features of semen evolved to promote the reproductive best interests of the donor. The presence of follicle stimulating hormone and leutenizing hormone in semen, implies that semen exposure has the potential to promote induced ovulation.
How can someone be asked to resign for citing a peer-reviewed paper? Dr. Greenfield was forced to resign based on politics, not evidence. His resignation is more a reflection of the feminist and anti-scientific attitudes of some self-righteous and indignant members of the American College of Surgeons. Science is based on evidence, not politics. In science knowing is always preferable to not knowing.
Steven M. Platek
Rebecca L. Burch
Gordon G. Gallup, Jr.
Or, as Dr. Greenfield told the Detroit Free Press, "My intention was to amuse rather than to offend."