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Orgasm, Orgasm

Orgasms are often associated with other involuntary actions, including muscular spasms in multiple areas of the body, a general euphoric sensation and, frequently, body movements and vocalization are expressed.

In humans, orgasm is typically correlated with the stimulation of the glans penis in males and with the stimulation of the clitoris in females. Stimulation can be by self (masturbation) or by partner (mutual masturbation) or by other sexual activities. Partners simultaneously stimulating both the male's glans penis and female's clitoris by mutual or simultaneous masturbation, rhythmic inter-genital contact friction or actual penetrative intercourse can lead to orgasm in one or both partners, sometimes simultaneously, known as simultaneous orgasm. Mixed gender or same gender partners can both stimulate and learn to control each other's orgasms.

Such stimulation can be achieved from a variety of activities. In men, sufficient stimulation can be achieved during vaginal or anal sexual intercourse, oral sex (fellatio), or by masturbation. This is usually accompanied by ejaculation. In women, orgasm may be achieved during vaginal sexual intercourse, oral sex (cunnilingus), masturbation, or other non-penetrative sex, and may be by the use of a sensual vibrator or an erotic electrostimulation, besides other activities. Orgasm may also be achieved by stimulation of the nipples, uterus, or other erogenous zones. In addition to physical stimulation, orgasm can be achieved from psychological arousal alone, such as during dreaming (which may be a nocturnal emission).

By learning and practice of the shared orgasmic response between partners, orgasm control can be expanded. This technique is known as expanded orgasm, a method of both controlling, enhancing, and extending the orgasmic response of either partner.

Practiced learned orgasmic partner responses learned this way can improve both orgasm control and orgasm expansiveness in any sexual interaction.

In 1905, Freud stated that clitoral orgasm was purely an adolescent phenomenon, and upon reaching puberty the proper response of mature women was a change-over to vaginal orgasms, meaning orgasms without any clitoral stimulation. While Freud provided no evidence for this basic assumption, the consequences of this theory were considerable. Many women felt inadequate when they could not achieve orgasm via vaginal intercourse alone, involving little or no clitoral stimulation.

It is now clear that clitoral tissue is far more widespread than the small visible part most people associate with the word. It is possible that some women have more extensive clitoral tissues and nerves than others, and therefore whereas many women can only achieve orgasm by direct stimulation of the external parts of the clitoris, for others the stimulation of the more generalized tissues of the clitoris via intercourse may be sufficient.

The Grfenberg spot, or G-spot, is a small area behind the female pubic bone surrounding the urethra and accessible through the anterior wall of the vagina. The G-spot orgasm is sometimes referred to as "vaginal," because it results from stimulation inside the vagina, including during sexual intercourse. The size of this spot appears to vary very considerably from person to person.

Anecdotal evidence suggests that some women experience anal orgasm as qualitatively different from clitoral or vaginal orgasm, though for many others the distinction is less clear.

According to one study that questioned 213 women, 29% of them had experienced a breast orgasm at one time or another. Otto, Herbert A. (1988) New Orgasm Options: Expanding Sexual Pleasure.

An orgasm is believed to occur in part because of the hormone oxytocin, which is produced in the body during sexual excitement and arousal. It has also been shown that oxytocin is produced when an individual's nipples are stimulated and become erect.

Although SCI very often leads to loss of certain sensations and altered self-perception, a person with this disturbance is not deprived of sexual feelings such as sexual arousal and erotic desires. Thus some individuals are able to initiate orgasm by mere mental stimulation.

Some men have reported having multiple consecutive orgasms, particularly without ejaculation. Males who experience dry orgasms can often produce multiple orgasms, as the refractory period, is reduced.

This can, however, lead to retrograde ejaculation, i.e. redirecting semen into the urinary bladder rather than through the urethra to the outside. It may also cause long term damage due to the pressure put on the nerves and blood vessels in the perineum. Men who have had prostate or bladder surgery, for whatever reason, may also experience dry orgasms because of retrograde ejaculation.

These techniques involve mental and physical controls over pre-ejaculatory vasocongestion and emissions, rather than ejaculatory contractions or forced retention as above. Anecdotally, successful implementation of these techniques can result in continuous or multiple "full-body" orgasms.

In female children it is always possible, even after the onset of puberty. This capacity generally disappears in males with the subject's 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 male orgasm.

Anecdotal reports on cabergoline suggest it may be able to eliminate the refractory period altogether, allowing men to experience multiple ejaculatory orgasms in rapid succession. At least one scientific study supports these claims.

During the study, six fully ejaculatory orgasms were experienced in 36 minutes, with no apparent refractory period.

However, the sensations in both sexes are extremely pleasurable and are often felt throughout the body, causing a mental state that is often described as transcendental, and with vasocongestion and associated pleasure comparable to that of a full contractionary orgasm.

For example, the 30% reduction in size of the vagina could help clench onto the penis (much like, or perhaps caused by, the pubococcygeus muscles), which would make it more stimulating for the male (thus ensuring faster or more voluminous ejaculation). The British biologists Baker and Bellis have suggested that the female orgasm may have an "upsuck" action (similar to the esophagus' ability to swallow when upside down), resulting in the retaining of favorable sperm and making conception more likely.

Stephen Jay Gould and other researchers have claimed that the clitoris is vestigial in females, and that female orgasm serves no particular evolutionary function. Proponents of this hypothesis, such as Dr. Elisabeth Lloyd, point to the relative difficulty of achieving female orgasm through vaginal sex, the limited evidence for increased fertility after orgasm and the lack of statistical correlation between the capacity of a woman to orgasm and the likelihood that she will engage in intercourse.

It is believed that the exact feeling of "orgasm" varies from one man to another, but most male human beings agree that it is highly pleasurable.

Some women exhibit a sex flush, a reddening of the skin over much of the body due to increased blood flow to the skin. As a woman nears orgasm, the clitoral glans moves inward under the clitoral hood, and the labia minora (inner lips) become darker. As orgasm becomes imminent, the outer third of the vagina tightens and narrows, while overall the vagina lengthens and dilates and also becomes congested from engorged soft tissue.

If a male experiences erection and ejaculation but no orgasm, he is said to have sexual anhedonia.

Often, women worry so much about the pleasure of their partner that they become anxious, which manifests as impatience with the delay of orgasm for them. This delay can lead to frustration of not reaching orgasmic sexual satisfaction. Psychoanalyst Wilhelm Reich, in his 1927 book The Function of the Orgasm was the first to make orgasm central to the concept of mental health, and defined neurosis in terms of blocks to having full orgasm. Although orgasm dysfunction can have psychological components, physiological factors often play a role. For instance, delayed orgasm or the inability to achieve orgasm is a common side effect of many medications.

GHB, GBL and 1,4 Butanediol are commonly used to enhance orgasms. Cocaine also increases sexual desire while delaying orgasm.

Anecdotal evidence suggests that women have enhanced orgasms with sildenafil (commercially known as Viagra ).

It attributes a different value to orgasm than traditional cultural approaches to sexuality. Some practitioners of tantric sex aim to eliminate orgasm from sexual intercourse by remaining for a long time in the pre-orgasmic and non-emission state. Advocates of this, such as Rajneesh, claim that it eventually causes orgasmic feelings to spread out to all of one's conscious experience.

Source: Wikipedia > Orgasm