Female orgasm from the point of view of evolution

Female orgasm from the point of view of evolution

Biologist Elizabeth Lloyd of Indiana University, thoroughly examined all the available knowledge about the female orgasm, and came to the unequivocal, but the disappointing conclusion that from the point of view of evolution, it is useless and impractical.

Orgasm and Pregnancy

First of all, getting an orgasm during intercourse, and the possibility of conceiving a child as a result of the same act together unrelated. Not all women have orgasms in bed, not all women can have children. But these are two completely different groups.

In order to woman pregnant, it is not necessary that she experienced "the moment of greatest sensual pleasures" (a definition of orgasm is often found in scientific and popular literature). This is the conclusion Lloyd, examining studies over the past '74 32 scientific studies on the prevalence and incidence of orgasmic experiences of the female half of humanity.

The woman has an orgasm has nothing to do with its main biological role — a sequel of sorts, as opposed to, say, a man whose orgasmic pleasure coincides with the moment of fertilization.

The reason?

Lloyd sees the roots of the problem during the prenatal development of the fetus. As you know, to a certain point the embryos do not differ by sex, even the nerves in the genital area all laid the same. But then, according to Dr. Lloyd, the men go further: there is a formation of a single mechanism responsible for the fertilization — ie orgasm occurs only during the ejection of sperm and nothing else.

Women as "equipment" necessary for orgasm, is given as a kind of bonus, as a by-product of the remainder of the foundation for the construction of the male reproductive system. Accordingly, from the point of view of evolution, women are orgasmic experiences artifact. Rather, "a means for fun," as Lloyd's.

In her book she gives another set of arguments, debunking the 20 major theories of female orgasm available at present moment. According to Lloyd, all of them are wrong. The only noteworthy theory it considers the point of view of an anthropology professor Donald Simons, which he gave in 1979. That is the theory of Simons and Lloyd took his basic argument: the difference in the intrauterine development.

Another point of view

Those wishing to criticize the new theory was enough.

-Professor John Alcock from the University of Arizona said that the irregular occurrence of orgasm in women is not a proof of its evolutionary inexpedient. According to Alcock, given a woman an orgasm in order to select the most appropriate for her man, the father of her future children. That is woman how to check the suitability of a man on the genetic and individual compatibility. Brought to orgasm — then be able to bring the matter to its logical end of procreation.

— The theory of Dr. Robin Baker and Mark Bellis, criticized the book Lloyd, is also not without foundation. In their view, the contraction of the muscles of the uterus and pelvis during orgasm helps to create the effect of "absorption" of sperm into the genital tract. This was confirmed by the results of studies — those women who had orgasms in the span of one minute before the partner ejaculated, and 45 minutes after retained in the vagina and the uterus is much more sperm. However, they have argued that the woman during sex with another man, in addition to a partner, with a lot more likely to experience orgasm, that, accordingly, increase the likelihood of conception. Thus, according to Baker and Bellis, women spend their genetic material selection, choosing only the best of their offspring genes.

-I do not agree with Lloyd and the famous anthropologist and evolutionary biologist, professor, University of California Sarah Blaffer Hrdayam whose work on women's reproductive roles are leading in the world. However, this did not stop Elizabeth Lloyd defeat them in his book. Hrdayam believes that orgasm— Is a kind of evolutionary develop protective means women to save their offspring from the aggression of men. In his research on primates professor Hrdayam showed that among those species of monkeys, females are not anatomically suited to orgasmic experiences, calf mortality is much higher because males often do not kill their young offspring clearing own place under the sun. And among macaques and chimpanzees, females are able to experience clitoral orgasms, this mortality is lower by several times. The reason is quite simple fact — in order to reach orgasm in the end, the female to mate with multiple males. As a result, the monkey-dads remain ignorant — who is whose child. A similar protective mechanism is transmitted and the closest relatives of the higher apes — humans. And in the early stages of human evolution, this factor played a huge role. In addition, notices Hrdayam, penis and clitoris in the embryonic period are developing in different ways, it is not straight counterparts.

As a result,

By and large, no particular practical relevance theory of Dr. Lloyd and erupted around her do not have a scientific discussion. Women as experienced orgasm, and will continue to experience it — either alone bring themselves to this state, or by providing the opportunity man.

Orgasm performs a very important function: it brings sexual partners, creates an emotional connection between them. Consequently, couples in which partners give each other the very moments of greatest pleasure are more stable, more resilient. Children grow up in a more favorable environment. And at least it onfemale orgasm can hang a huge label: "Checked: evolutionarily expedient."

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