An orgasm (sexual climax) is the conclusion of the plateau phase of the cycle of sexual response, and can be experienced by both men and women. Orgasm is characterized by intense physical pleasure, controlled by the involuntary or autonomous nervous system. [1] He is accompanied by rapid cycles of muscle contraction in the lower pelvic muscles, which surround the primary sexual organs and the anus. Orgasms are often associated with other involuntary actions, including muscular spasms in other areas of the body, a general feeling euphoric, and frequent vocalizations. One of the key elements to achieve orgasm is through direct or indirect stimulation of the clitoris or penis. Such stimulation can from a variety of activities, including but not limited to sexual intercourse, manual masturbation, anal sex, oral sex, non-penetrative sex, a sensual vibrator or an erotic electrical stimulation. Orgasm can be achieved by stimulating the nipples or other erogenous zones. In the absence of physical stimulation, orgasm can be alone or psychological arousal while dreaming (a nocturnal emission or "wet dream" for men). With sufficient stimulation, the prostate hyperplasia structure can be "milked". Provided that there is no simultaneous stimulation of the penis, prostate milking can lead to orgasm without ejaculation. In combination with penis stimulation, some men report that prostate stimulation increases the volume of ejaculation. The "two-orgasm theory" (the belief that for women there is a vaginal orgasm and a clitoral orgasm), was developed by feminists as Ellen Ross and Rayna Rapp as "transparent male perception of the female body." [5] The concept of pure vaginal orgasm was first postulated by Sigmund Freud. In 1905, Freud argued that clitoral orgasm was a youthful appearance, and upon reaching puberty the correct answer of mature women changes in vaginal orgasms. While Freud, provided no evidence for this basic assumption, the consequences of the theory were heavily drawn, in part because many women feel inadequate if they could not achieve orgasm through vaginal intercourse that have little or no clitoral stimulation. In 1966, Masters and Johnson published key research on the stages of sexual stimulation. Their work included women and men, and in contrast to earlier Alfred Kinsey (1948 and 1953), tries to identify the physiological phases before and after orgasm. [6] One of the results was to promote the idea that vaginal orgasm clitoris and follow the same stages of physical response. Masters and Johnson also argued that the clitoral stimulation is the primary source of orgasms. Anal orgasm is an orgasm brought to the anal stimulation, as anal sex, inserted a finger or a sex toy. There is evidence that some women experience anal orgasm as qualitatively different from clitoris or "vaginal" orgasm, but for many others the distinction is less clear. [8] A breast of female orgasm is an orgasm, triggered by the stimulation of a woman breast. [10] Not all women experience this effect when the breasts are stimulated, but some women say that the stimulation of the breast during sexual intercourse and foreplay, or just the simple act, fondled their breasts, mild to intense orgasm. According to a study that surveyed 213 women, 29% of them had an orgasm chest at a time or another, [11] This shows that it is not usual, but it is possible. An orgasm is that they occur, in part because the hormone oxytocin, which is produced in the body during sexual arousal and excitement. It was also shown that oxytocin is produced when an individual stimulating the nipples, and are built. [12] The first orgasm of this kind has been reported among people who had spinal cord injury (SCI). Although SCI very often leads to loss of certain sensations and changing self-understanding, a person with this disorder are not deprived of sexual feelings of sexual arousal and erotic desires. Some individuals are able to initiate orgasm by mere intellectual stimulation. Some non-sexual activity can lead to a spontaneous orgasm. The best example of such activity is a release of tension that unintentionally with mild genital stimulation, as the rubbing of the seat of the bicycle against the genitals while riding, practice, when pelvic muscles tightened or when yawning or sneezing. In some cases, women either do not have a refractory period of time or have a very short and can therefore be a second experience orgasm, and maybe those who soon after the first. After the first, subsequent high points can be stronger or more comfortable as the stimulation accumulates. For some women, their clitoris and nipples are very sensitive to the peak, so that additional stimulation initially painful. A dangerous technique is to put pressure on the perineum, about halfway between the scrotum and the anus, just before ejaculating to prevent ejaculation. However, this can cause retrograde ejaculation, or semen to divert the urinary bladder rather than through the urethra to the outside world. It can also cause long term damage caused by the pressure on the nerves and blood vessels in the perineum. Men who have had or bladder, prostate surgery, for whatever reason, can also experience dry orgasms because of retrograde ejaculation. Many men began to masturbation or other sexual activity before puberty in the report were able to achieve multiple non-ejaculatory orgasms. Young male children are capable of multiple orgasms because of the lack of refractory period until they reach their first ejaculation. In female children, it is always possible, even after the onset of puberty. This ability usually disappears in men with the theme of the first ejaculation. Some evidence indicates that orgasms of men before puberty are qualitatively similar to the "normal" female experience of orgasm, suggesting that hormonal changes during puberty have a strong influence on the character of the male orgasm. [18] A number of studies have already pointed out that the hormone prolactin as the likely cause of male refractory period. For this reason, there is currently an interest in experimental drugs inhibit prolactin, as Cabergolin (also known as Cabeser or Dostinex). Anekdotische reports on Cabergolin recommend It is possible to eliminate the refractory period a whole, so that men can experience several ejaculatory orgasms in quick succession. At least one scientific study supports these claims. [19] Cabergolin is a hormone drug to change and has many potential side effects. It has not been approved for the treatment of sexual dysfunction. Another reason may be an increased infusion of the hormone oxytocin. Moreover, it is estimated that the amount by which oxytocin increases may affect the length of each refractory period. In these and similar cases, the feelings are subjective and not necessarily experienced involuntary contractions characteristic of orgasm. However, the feelings of both sexes are very pleasant and are often felt throughout the body, resulting in a mental state, is often described as transcendental, and with vasocongestion and related joy comparable to that of a full contractionary orgasm. Most male orgasm semen expulsion from the body during vaginal intercourse, which can lead to conception. Evolutionary biologists have several hypotheses about the role, if any, of the female orgasm in the reproductive process. In 1967, Desmond Morris in his first popular book "The Naked Ape science that female orgasm evolved to promote physical intimacy with a male partner and help the couple bond. Morris suggested that the relative difficulty in achieving female orgasm, compared to the male, could conveniently located in the Darwinian evolution of the leading women to choose mates, bear qualities such as patience, attention, imagination, intelligence, as opposed to features such as size and aggression, to mate selection in other primates. These beneficial Properties will be accentuated within species, due to the differences between male and female orgasm. If men were motivated by, and take on the point orgasm in the same way as women, the qualities of advantage would not be necessary because their own interest would be enough. Other theories are based on the idea that the female orgasm could increase fertility. For example, the 30% reduction in the size of the vagina could help clench on the penis (how much, or perhaps by the pubococcygeus muscles) it more stimulating for the male (and thus ensuring faster or more voluminous ejaculation). The British biologists Baker and Bellis have suggested that the female orgasm may have "upsuck" action (similar to the esophagus' ability to swallow if the upside), which is the binding of low sperm and conception more likely. [23] They postulated a role of the female orgasm in the sperm of competition. A 1994 Learning Channel documentary about sex had fibre-optic cameras inside the vagina of a woman while they had sexual intercourse. During her orgasm, her pelvis muscles contracted and cervix repeatedly dipped into a pool of semen in the vaginal fornix, as if to ensure that sperm would go through the external opening of the uterus, the conception more likely. [24] Elisabeth Lloyd has criticized the accompanying story about this film clip describing it as an example of "Sperm Upsuck" and said that it normally shown orgasmic contractions of the uterus, which have not yet been proved and have no effect on fertility. [25] Other biologists suspect that the orgasm simply serves to motivate sex, thus increasing the rate of reproduction, which would be selected for during evolution. Since men usually reach orgasm faster than women, it promotes potentially a female's desire to focus on sexual intercourse more often, increasing the likelihood, control of conception. The clitoris is homologous to the penis, which means they develop both from the same embryonic structure. Stephen Jay Gould and other researchers have argued that the clitoris is vestigial in women and that female orgasm serves no evolutionary function. The proponents of this hypothesis, as Dr. Elisabeth Lloyd, point to the relative difficulty of achieving female orgasm through vaginal sex, limited evidence of a stronger After orgasm fertility and the lack of statistical correlation between the ability of a woman to orgasm and the likelihood that they refer to sexual intercourse. [27] science writer Natalie Angier has criticized this hypothesis as psychosocial understating the value of the female orgasm. Catherine Blackledge in the history of the V, cited studies on a possible link between orgasm and successful conception, has criticized the hypothesis ignores the continuing evolutionary advantages that a successful design. The anthropologist and primatologist Sarah Blaffer Hrdy has also criticized the argument that female orgasm as a vestigial, writing that the idea smacked of sexism. [28] evolutionary biologist Robin Baker argued Sperm Wars in the occurrence and timing of the orgasms are all part of the female body unconscious strategy to collect and preserve sperm from more evolutionarily fit men. An orgasm during sexual intercourse acts as a bypass button to a woman's natural filter against cervical cancer sperm and pathogens. An orgasm before functions to strengthen the filters. During orgasm, a human male experience fast, rhythmic contractions of the anal sphincter, prostate, and the muscles of the penis. The sperm will be notified of the vas deferens of the testes, prostate and the seminal vesicles to produce what is known as seeds. The prostate produces a secretion, which is one of the components of the ejaculate. Contraction of the sphincter and prostate force sperm stored and distributed by the penis-urethral opening. The process takes three to ten seconds, and is very pleasant. As a man approaching orgasm during the stimulation of the penis, he feels an intense and very pleasant feeling of pulsating neuromuscular euphoria. These impulses begins with a throb of the anal sphincter and travelling in the tip of the penis. Finally, increase the speed and intensity as the orgasm approaches, until a final "plateau" of pleasure lasting for several seconds, the orgasm. During orgasm, semen is generally ejaculated and can continue ejaculated for a few seconds after the euphoric feeling gradually tapers. It is assumed that the exact feeling of "orgasm" varies from one man to another, [32], but most male human beings agree that it is very pleasant. A typical woman orgasm lasts much longer than a man. [33] It is the establishment of the clitoris and moistening the opening of the vagina. Some women have a sex flush, a reddening of the skin over a large part of the body due to the increasing blood flow to the skin. As a woman approaching orgasm, the clitoris Eichel moves inwards under the hood clitoris and the labia minora (inner lips) are darker. As orgasm is imminent, the outer third of the vagina tightened and constricted, while a total of the vagina and expanded and is also congested engorged soft tissue. [34] The uterus then experience muscular contractions. A woman full of experience orgasm, when her uterus, vagina, anus, muscles and pelvic area to undergo a series of rhythmic contractions. Most women find this very pleasant contractions. Recently, researchers from the University Medical Center Groningen, the Netherlands, showed that it is possible to objectively recognize orgasms only by specific frequencies of these contractions (Abstract). After orgasm, the clitoris again from the clitoral hood, and returns to its normal size, usually within ten minutes. Orgasm, sex and, in fact, as a whole, are physical activities that require the effort of many large physical systems. A 1997 study in the British Medical Journal [35] is based on 918 men age 45-59 found that after a ten-year follow-up, men who had fewer orgasms were twice as likely to die of any cause as those with two or more orgasms in the week. A follow-up in 2001, the focus on cardiovascular health found that sex three or more times a week was associated with a 50% reduction in the risk of heart attack or stroke. (Note that in general, correlation does not imply causality). Orgasm If desired, anorgasmia is mainly attributed to the inability to relax, or "let go". It seems to be closely associated with performance pressure and a lack of willingness to pursue joy, as separate from the other person's satisfaction. Often, women worry so much about the pleasure of their partner that they sought to manifest itself as impatience with the delay orgasm for them. This delay can lead to the frustration not to reach orgasmic sexual satisfaction. Psychoanalyst Wilhelm Reich, 1927 in his book The function of the orgasm was the first orgasm to make crucial for the concept of mental health, neurosis and defined in the form of blocks to the full orgasm. Although orgasm dysfunction can mental components, physiological factors often play a role. For example, delayed orgasm or an inability to achieve orgasm is a common side effect of many drugs. Especially in connection with the simultaneous orgasm and similar practices, many sexologists claim that the problem of premature ejaculation [36] is closely associated with the idea, encouraged by a scientific approach in the early 20th Century, when the mutual orgasm was overly stressed, as the target and a sign of true sexual satisfaction in intimate relationships. One focus is brought to the subject of simultaneous orgasm raises the problem that a man is too concerned with delaying ejaculation, in fact, the movement of the necessary spontaneity and only the simultaneous orgasm more difficult to achieve . As a partner deals with the control and synchronize their actions instead of enjoying the process, this can lead to sexual disorders. Some advocates of tantric sex and neotantric claim that Western culture focuses too much on the goal of climatic orgasm, which reduces our ability to have intense moments of pleasure in other sexual experiences. The removal of these enables a richer, fuller and more intense. [41]
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