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Promiscuity is the practice of having casual sex frequently with different partners or being indiscriminate in the choice of sexual partners.〔(【引用サイトリンク】url=http://www.thefreedictionary.com/promiscuous )〕 The term can carry a moral judgement if viewed in the context of a mainstream social ideal for sexual activity to occur only within exclusive committed relationships. A common example of behavior viewed as promiscuous within the social ideals of many cultures is a one-night stand and (as seen in this 2014 survey〔(【引用サイトリンク】url=http://metro.co.uk/2014/01/08/liverpool-named-uks-most-promiscuous-city-in-one-night-stand-poll-4254176/ )〕) is often the way researchers define a society's promiscuity levels at any given time. What sexual behavior is considered promiscuous varies between cultures, as does the prevalence of promiscuity, with different standards often being applied to different genders and civil status. Feminists have traditionally argued a significant double standard exists between how men and women are judged for promiscuity. Historically, stereotypes of the promiscuous woman have tended to be negative, such as "the slut" or "the harlot", while male stereotypes have been more varied, some expressing approval, such as "the stud" or "the player", while others imply societal deviance, such as "a womanizer". A scientific study published in 2005 found that promiscuous men and women are judged equally harshly〔Michael Marks, R. Fraley. "The Sexual Double Standard: Fact or Fiction?". Sex Roles, Volume 52, Numbers 3-4, February 2005 , pp. 175-186(12)〕 and a recent poll showed that both genders tend to express strong preference for sexually conservative partners.〔http://www.askmen.com/specials/great_female_survey〕 However, later studies show evidence for a double standard.〔http://digitalcommons.iwu.edu/cgi/viewcontent.cgi?article=1155&context=psych_honproj〕〔(【引用サイトリンク】title="Would You Go To Bed With Me Tonight?": Stigma and the Sexual Double Standard - - - Science of Relationships )〕〔(【引用サイトリンク】title=Motives for the Sexual Double Standard: A Test of Female Control Theory )〕 Promiscuity is common in many animal species.〔 Some species have promiscuous mating systems, ranging from polyandry and polygyny to mating systems with no stable relationships where mating between two individuals is a one-time event. Many species form stable pair bonds, but still mate with other individuals outside the pair. In biology, incidents of promiscuity in species that form pair bonds are usually called extra-pair copulations. ==Humans== Accurately assessing people's sexual behavior is difficult, since strong social and personal motivations occur, depending on social sanctions and taboos, for either minimizing or exaggerating reported sexual activity. American experiments in 1978 and 1982 found the great majority of men were willing to have sex with women they did not know, of average attractiveness, who propositioned them. No woman, by contrast, agreed to such propositions from men of average attractiveness. While men were in general comfortable with the requests, regardless of their willingness ("Why do we have to wait until tonight?", "(sorry ), I'm married"), women responded with shock and disgust ("You've got to be kidding", "What is wrong with you? Leave me alone"). The number of sexual partners people have had in their lifetimes varies widely within a population. A 2007 nationwide survey in the United States found the median number of female sexual partners reported by men was seven and the median number of male partners reported by women was four. The men possibly exaggerated their reported number of partners, women reported a number lower than the actual number, or a minority of women had a sufficiently larger number than most other women to create a mean significantly higher than the median, or all of the above (see Pareto principle). About 29% of men and 9% of women reported to have had more than 15 sexual partners in their lifetimes.〔(【引用サイトリンク】title=Average man sleeps with 7 women - Health - Sexual health - NBC News )〕 Studies of the spread of sexually transmitted diseases consistently demonstrate a small percentage of the studied population has more partners than the average man or woman, and a smaller number of people have fewer than the statistical average. An important question in the epidemiology of sexually transmitted infections is whether or not these groups copulate mostly at random (with sexual partners from throughout a population) or within their social groups (assortative mixing). A 2006 systematic review (analyzing data from 59 countries worldwide) found no association between regional sexual behavior tendencies, such as number of sexual partners, and sexual-health status. Much more predictive of sexual-health status are socioeconomic factors like poverty and mobility. Other studies have suggested that people with multiple casual sex partners are more likely to be diagnosed with sexually transmitted infections. Severe and impulsive promiscuity, along with a compulsive urge to engage in illicit sex with attached individuals is a common symptom of borderline personality disorder, but most promiscuous individuals do not have this disorder. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「promiscuity」の詳細全文を読む スポンサード リンク
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