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Homosexuality is romantic attraction, sexual attraction, or sexual behavior between members of the same sex or gender. As a sexual orientation, homosexuality is "an enduring pattern of emotional, romantic, and/or sexual attractions" to people of the same sex. It "also refers to a person's sense of identity based on those attractions, related behaviors, and membership in a community of others who share those attractions."[1][2]

Along with bisexuality and heterosexuality, homosexuality is one of the three main categories of sexual orientation within the heterosexual–homosexual continuum.[1] Scientists do not know what determines an individual's sexual orientation, but they theorize that it is caused by a complex interplay of genetic, hormonal, and environmental influences,[3][4][5] and do not view it as a choice.[3][4][6] Although no single theory on the cause of sexual orientation has yet gained widespread support, scientists favor biologically-based theories.[3] There is considerably more evidence supporting nonsocial, biological causes of sexual orientation than social ones, especially for males.[7][8][9] There is no substantive evidence which suggests parenting or early childhood experiences play a role with regard to sexual orientation.[10] While some people believe that homosexual activity is unnatural,[11] scientific research shows that homosexuality is a normal and natural variation in human sexuality and is not in and of itself a source of negative psychological effects.[1][12] There is insufficient evidence to support the use of psychological interventions to change sexual orientation.[13]

The most common terms for homosexual people are lesbian for females and gay for males, but gay also commonly refers to both homosexual females and males. The percentage of people who are gay or lesbian and the proportion of people who are in same-sex romantic relationships or have had same-sex sexual experiences are difficult for researchers to estimate reliably for a variety of reasons, including many gay and lesbian people not openly identifying as such due to prejudice or discrimination such as homophobia and heterosexism.[14] Homosexual behavior has also been documented in many non-human animal species.[18]

Many gay and lesbian people are in committed same-sex relationships, though only in the 2010s have census forms and political conditions facilitated their visibility and enumeration.[21] These relationships are equivalent to heterosexual relationships in essential psychological respects.[2] Homosexual relationships and acts have been admired, as well as condemned, throughout recorded history, depending on the form they took and the culture in which they occurred.[22] Since the end of the 19th century, there has been a global movement towards freedom and equality for gay people, including the introduction of anti-bullying legislation to protect gay children at school, legislation ensuring non-discrimination, equal ability to serve in the military, equal access to health care, equal ability to adopt and parent, and the establishment of marriage equality.

Etymology


The word homosexual is a Greek and Latin hybrid, with the first element derived from Greek ὁμός homos, "same" (not related to the Latin homo, "man", as in Homo sapiens), thus connoting sexual acts and affections between members of the same sex, including lesbianism.[23]A%20Dictionary%20of%20True%20Etymolo]]homosexual Karl-Maria Kertbeny onymously,[25] arguing against a Prussian anti-sodomy law.[25][26] In 1886, the psychiatrist Richard von Krafft-Ebing used the terms homosexual and heterosexual in his book Psychopathia Sexualis. Krafft-Ebing's book was so popular among both laymen and doctors that the terms "heterosexual" and "homosexual" became the most widely accepted terms for sexual orientation.[27][28] As such, the current use of the term has its roots in the broader 19th-century tradition of personality taxonomy.

Many modern style guides in the U.S. recommend against using homosexual as a noun, instead using gay man or lesbian.[29] Similarly, some recommend completely avoiding usage of homosexual as it has a negative, clinical history and because the word only refers to one's sexual behavior (as opposed to romantic feelings) and thus it has a negative connotation.[29] Gay and lesbian are the most common alternatives. The first letters are frequently combined to create the initialism LGBT (sometimes written as GLBT), in which B and T refer to bisexual and transgender people.

Gay especially refers to male homosexuality,[30] but may be used in a broader sense to refer to all LGBT people. In the context of sexuality, lesbian refers only to female homosexuality. The word lesbian is derived from the name of the Greek island Lesbos, where the poet Sappho wrote largely about her emotional relationships with young women.[31][32]

Although early writers also used the adjective homosexual to refer to any single-sex context (such as an all-girls school), today the term is used exclusively in reference to sexual attraction, activity, and orientation. The term homosocial is now used to describe single-sex contexts that are not specifically sexual. There is also a word referring to same-sex love, homophilia

Some synonyms for same-sex attraction or sexual activity include men who have sex with men or MSM (used in the medical community when specifically discussing sexual activity) and homoerotic (referring to works of art).[33][34][35][36][37][38]reclaimed as positive words by gay men and lesbians, as in the usage of queer studies, queer theory, and even the popular American television program Queer Eye for the Straight Guy.[39] The word homo occurs in many other languages without the pejorative connotations it has in English.[40] As with ethnic slurs and racial slurs, the misuse of these terms can still be highly offensive. The range of acceptable use for these terms depends on the context and speaker.[40] Conversely, gay, a word originally embraced by homosexual men and women as a positive, affirmative term (as in gay liberation and gay rights),[42] has come into widespread pejorative use among young people.[43]

The American LGBT rights organization GLAAD advises the media to avoid using the term homosexual to describe gay people or same-sex relationships as the term is "frequently used by anti-gay extremists to denigrate gay people, couples and relationships".[44]

History


Societal attitudes towards same-sex relationships have varied over time and place, from expecting all males to engage in same-sex relationships, to casual integration, through acceptance, to seeing the practice as a minor sin, repressing it through law enforcement and judicial mechanisms, and to proscribing it under penalty of death.

In a detailed compilation of historical and ethnographic materials of preindustrial cultures, "strong disapproval of homosexuality was reported for 41% of 42 cultures; it was accepted or ignored by 21%, and 12% reported no such concept. Of 70 ethnographies, 59% reported homosexuality absent or rare in frequency and 41% reported it present or not uncommon."[45]

In cultures influenced by Abrahamic religions, the law and the church established sodomy as a transgression against divine law or a crime against nature. The condemnation of anal sex between males, however, predates Christian belief. It was frequent in ancient Greece; "unnatural" can be traced back to Plato.[46]

Many historical figures, including Socrates, Lord Byron, Edward II, and Hadrian,[47] have had terms such as gay or bisexual applied to them. Some scholars, such as Michel Foucault, have regarded this as risking the anachronistic introduction of a contemporary construction of sexuality foreign to their times,[48] though other scholars challenge this.[49][50][51]

In social science, there has been a dispute between "essentialist" and "constructionist" views of homosexuality.

The first record of a possible homosexual couple in history is commonly regarded as Khnumhotep and Niankhkhnum, an ancient Egyptian male couple, who lived around 2400 BCE. The pair are portrayed in a nose-kissing position, the most intimate pose in Egyptian art, surrounded by what appear to be their heirs. The anthropologists Stephen Murray and Will Roscoe reported that women in Lesotho engaged in socially sanctioned "long term, erotic relationships" called motsoalle.[54] The anthropologist E. E. Evans-Pritchard also recorded that male Azande warriors in the northern Congo routinely took on young male lovers between the ages of twelve and twenty, who helped with household tasks and participated in intercrural sex with their older husbands.[55]

Among indigenous peoples of the Americas prior to European colonization, a common form of same-sex sexuality centered around the figure of the Two-Spirit individual. Typically, this individual was recognized early in life, given a choice by the parents to follow the path and, if the child accepted the role, raised in the appropriate manner, learning the customs of the gender it had chosen. Two-Spirit individuals were commonly shamans and were revered as having powers beyond those of ordinary shamans. Their sexual life was with the ordinary tribe members of the same sex.

Homosexual and transgender individuals were also common among other pre-conquest civilizations in Latin America, such as the Aztecs, Mayas, Quechuas, Moches, Zapotecs, and the Tupinambá of Brazil.[56][57]

The Spanish conquerors were horrified to discover sodomy openly practiced among native peoples, and attempted to crush it out by subjecting the berdaches (as the Spanish called them) under their rule to severe penalties, including public execution, burning and being torn to pieces by dogs.[58]

In 1986, the Supreme Court of the United States ruled in Bowers v. Hardwick that a state could criminalize sodomy, but, in 2003, overturned itself in Lawrence v. Texas and thereby legalized homosexual activity throughout the United States of America.

Same-sex marriage in the United States expanded from one state in 2004 to all fifty states in 2015, through various state court rulings, state legislation, direct popular votes (referendums and initiatives), and federal court rulings.

In East Asia, same-sex love has been referred to since the earliest recorded history.

Homosexuality in China, known as the passions of the cut peach and various other euphemisms, has been recorded since approximately 600 BCE. Homosexuality was mentioned in many famous works of Chinese literature. The instances of same-sex affection and sexual interactions described in the classical novel Dream of the Red Chamber seem as familiar to observers in the present as do equivalent stories of romances between heterosexual people during the same period. Confucianism, being primarily a social and political philosophy, focused little on sexuality, whether homosexual or heterosexual. Ming Dynasty literature, such as Bian Er Chai (弁而釵/弁而钗), portray homosexual relationships between men as more enjoyable and more "harmonious" than heterosexual relationships.[59] Writings from the Liu Song Dynasty by Wang Shunu claimed that homosexuality was as common as heterosexuality in the late 3rd century.[60]

Opposition to homosexuality in China originates in the medieval Tang Dynasty (618–907), attributed to the rising influence of Christian and Islamic values,[61] but did not become fully established until the Westernization efforts of the late Qing Dynasty and the Republic of China.[59]

The Laws of Manu mentions a "third sex", members of which may engage in nontraditional gender expression and homosexual activities.[63]

The earliest Western documents (in the form of literary works, art objects, and mythographic materials) concerning same-sex relationships are derived from ancient Greece.

In regard to male homosexuality, such documents depict an at times complex understanding in which relationships with women and relationships with adolescent boys could be a part of a normal man's love life.

Little is known of female homosexuality in antiquity.

In Ancient Rome, the young male body remained a focus of male sexual attention, but relationships were between older free men and slaves or freed youths who took the receptive role in sex. The Hellenophile emperor Hadrian is renowned for his relationship with Antinous, but the Christian emperor Theodosius I decreed a law on 6 August 390, condemning passive males to be burned at the stake. Notwithstanding these regulations taxes on brothels with boys available for homosexual sex continued to be collected until the end of the reign of Anastasius I in 518. Justinian, towards the end of his reign, expanded the proscription to the active partner as well (in 558), warning that such conduct can lead to the destruction of cities through the "wrath of God".

During the Renaissance, wealthy cities in northern ItalyFlorence and Venice in particular—were renowned for their widespread practice of same-sex love, engaged in by a considerable part of the male population and constructed along the classical pattern of Greece and Rome.[71]Forbidden%20Friendships%3A%20Ho]] aegis Officers of the Night court, were prosecuting, fining, and imprisoning a good portion of that population.

From the second half of the 13th century, death was the punishment for male homosexuality in most of Europe.[73] The relationships of socially prominent figures, such as King James I and the Duke of Buckingham, served to highlight the issue, including in anonymously authored street pamphlets: "The world is chang'd I know not how, For men Kiss Men, not Women now;...Of J. the First and Buckingham: He, true it is, his Wives Embraces fled, To slabber his lov'd Ganimede" (Mundus Foppensis, or The Fop Display'd, 1691).

Love Letters Between a Certain Late Nobleman and the Famous Mr. Wilson was published in 1723 in England and was presumed by some modern scholars to be a novel.

Between 1864 and 1880 Karl Heinrich Ulrichs published a series of twelve tracts, which he collectively titled Research on the Riddle of Man-Manly Love. In 1867, he became the first self-proclaimed homosexual person to speak out publicly in defense of homosexuality when he pleaded at the Congress of German Jurists in Munich for a resolution urging the repeal of anti-homosexual laws.[14] Sexual Inversion by Havelock Ellis, published in 1896, challenged theories that homosexuality was abnormal, as well as stereotypes, and insisted on the ubiquity of homosexuality and its association with intellectual and artistic achievement.[76]

Although medical texts like these (written partly in Latin to obscure the sexual details) were not widely read by the general public, they did lead to the rise of Magnus Hirschfeld's Scientific-Humanitarian Committee, which campaigned from 1897 to 1933 against anti-sodomy laws in Germany, as well as a much more informal, unpublicized movement among British intellectuals and writers, led by such figures as Edward Carpenter and John Addington Symonds. Beginning in 1894 with Homogenic Love, Socialist activist and poet Edward Carpenter wrote a string of pro-homosexual articles and pamphlets, and "came out" in 1916 in his book My Days and Dreams. In 1900, Elisar von Kupffer published an anthology of homosexual literature from antiquity to his own time, Lieblingminne und Freundesliebe in der Weltliteratur

There are a handful of accounts by Arab travelers to Europe during the mid-1800s.

Israel is considered the most tolerant country in the Middle East and Asia to homosexuals,[78] with Tel Aviv being named "the gay capital of the Middle East"[79] and considered one of the most gay friendly cities in the world.[80] The annual Pride Parade in support of homosexuality takes place in Tel Aviv.[81]

On the other hand, many governments in the Middle East often ignore, deny the existence of, or criminalize homosexuality.

In ancient Sumer, a set of priests known as gala worked in the temples of the goddess Inanna, where they performed elegies and lamentations.[86] Gala took female names, spoke in the eme-sal dialect, which was traditionally reserved for women, and appear to have engaged in homosexual intercourse.[87] The Sumerian sign for gala was a ligature of the signs for "penis" and "anus".[87] One Sumerian proverb reads: "When the gala wiped off his ass [he said], 'I must not arouse that which belongs to my mistress [i.e., Inanna].'"[87] In later Mesopotamian cultures, kurgarrū and assinnu were servants of the goddess Ishtar (Inanna's East Semitic equivalent), who dressed in female clothing and performed war dances in Ishtar's temples.[87] Several Akkadian proverbs seem to suggest that they may have also engaged in homosexual intercourse.[87]

In ancient Assyria, homosexuality was present and common; it was also not prohibited, condemned, nor looked upon as immoral or disordered. Some religious texts contain prayers for divine blessings on homosexual relationships.[88][89] The Almanac of Incantations contained prayers favoring on an equal basis the love of a man for a woman, of a woman for a man, and of a man for man.[90]

Some scholars argue that there are examples of homosexual love in ancient literature, like in the Mesopotamian Epic of Gilgamesh as well as in the Biblical story of David and Jonathan. In the Epic of Gilgamesh, the relationship between the main protagonist Gilgamesh and the character Enkidu has been seen by some to be homosexual in nature.[91][92][93][94]What%20Can%20the%20Gilgame]]imilarly, David's love for Jonathan is "greater than the love of women."

In many societies of Melanesia, especially in Papua New Guinea, same-sex relationships were an integral part of the culture until the middle of the 1900s. The Etoro and Marind-anim for example, viewed heterosexuality as sinful and celebrated homosexuality instead. In many traditional Melanesian cultures a prepubertal boy would be paired with an older adolescent who would become his mentor and who would "inseminate" him (orally, anally, or topically, depending on the tribe) over a number of years in order for the younger to also reach puberty. Many Melanesian societies, however, have become hostile towards same-sex relationships since the introduction of Christianity by European missionaries.[96]

Sexuality and identity


The American Psychological Association, the American Psychiatric Association, and the National Association of Social Workers identify sexual orientation as "not merely a personal characteristic that can be defined in isolation. Rather, one's sexual orientation defines the universe of persons with whom one is likely to find the satisfying and fulfilling relationships":[2]

The Kinsey scale, also called the Heterosexual-Homosexual Rating Scale,[97] attempts to describe a person's sexual history or episodes of his or her sexual activity at a given time. It uses a scale from 0, meaning exclusively heterosexual, to 6, meaning exclusively homosexual. In both the Male and Female volumes of the Kinsey Reports, an additional grade, listed as "X", has been interpreted by scholars to indicate asexuality.[98]

Often, sexual orientation and sexual orientation identity are not distinguished, which can impact accurately assessing sexual identity and whether or not sexual orientation is able to change; sexual orientation identity can change throughout an individual's life, and may or may not align with biological sex, sexual behavior or actual sexual orientation.[99][100][101] While the Centre for Addiction and Mental Health and American Psychiatric Association state that sexual orientation is innate, continuous or fixed throughout their lives for some people, but is fluid or changes over time for others,[102][103] the American Psychological Association distinguishes between sexual orientation (an innate attraction) and sexual orientation identity (which may change at any point in a person's life).[104]

People with a homosexual orientation can express their sexuality in a variety of ways, and may or may not express it in their behaviors.[1] Many have sexual relationships predominantly with people of their own gender identity, though some have sexual relationships with those of the opposite gender, bisexual relationships, or none at all (celibacy).[1] Survey data indicates that between 40% and 60% of gay men and between 45% and 80% of lesbians are currently involved in a romantic relationship.[105] Survey data also indicate that between 18% and 28% of gay couples and between 8% and 21% of lesbian couples in the U.S. have lived together ten or more years.[105] Studies have found same-sex and opposite-sex couples to be equivalent to each other in measures of satisfaction and commitment in relationships, that age and gender are more reliable than sexual orientation as a predictor of satisfaction and commitment to a relationship, and that people who are heterosexual or homosexual share comparable expectations and ideals with regard to romantic relationships.[106][107][108]

Coming out (of the closet) is a phrase referring to one's disclosure of their sexual orientation or gender identity, and is described and experienced variously as a psychological process or journey.[110] Generally, coming out is described in three phases. The first phase is that of "knowing oneself", and the realization emerges that one is open to same-sex relations.[111] This is often described as an internal coming out. The second phase involves one's decision to come out to others, e.g. family, friends, or colleagues. The third phase more generally involves living openly as an LGBT person.[112] In the United States today, people often come out during high school or college age. At this age, they may not trust or ask for help from others, especially when their orientation is not accepted in society. Sometimes their own families are not even informed.

According to Rosario, Schrimshaw, Hunter, Braun (2006), "the development of a lesbian, gay, or bisexual (LGB) sexual identity is a complex and often difficult process.

Outing is the practice of publicly revealing the sexual orientation of a closeted person.[114] Notable politicians, celebrities, military service people, and clergy members have been outed, with motives ranging from malice to political or moral beliefs. Many commentators oppose the practice altogether,[115] while some encourage outing public figures who use their positions of influence to harm other gay people.[116]

Lesbians often experience their sexuality differently from gay men, and have different understandings about etiology from those derived from studies focused mostly on men.

In a U.S.-based 1970s mail survey by Shere Hite, lesbians self-reported their reasons for being lesbian. This is the only major piece of research into female sexuality that has looked at how women understand being homosexual since Kinsey in 1953. The research yielded information about women's general understanding of lesbian relationships and their sexual orientation. Women gave various reasons for preferring sexual relations with women to sexual relations with men, including finding women more sensitive to other people's needs.[117]

Since Hite carried out her study she has acknowledged that some women may have chosen the political identity of a lesbian.

Early 20th-century writers on a homosexual orientation usually understood it to be intrinsically linked to the subject's own sex.

Transgender and cisgender people may be attracted to men, women or both, although the prevalence of different sexual orientations is quite different in these two populations (see sexual orientation of transwomen). An individual homosexual, heterosexual or bisexual person may be masculine, feminine, or androgynous, and in addition, many members and supporters of lesbian and gay communities now see the "gender-conforming heterosexual" and the "gender-nonconforming homosexual" as negative stereotypes. However, studies by J. Michael Bailey and K.J. Zucker have found that a majority of gay men and lesbians report being gender-nonconforming during their childhood years.[120]

Demographics


Reliable data as to the size of the gay and lesbian population are of value in informing public policy.[123] For example, demographics would help in calculating the costs and benefits of domestic partnership benefits, of the impact of legalizing gay adoption, and of the impact of the U.S. military's Don't Ask Don't Tell policy.[123] Further, knowledge of the size of the "gay and lesbian population holds promise for helping social scientists understand a wide array of important questions—questions about the general nature of labor market choices, accumulation of human capital, specialization within households, discrimination, and decisions about geographic location."[123]

Measuring the prevalence of homosexuality presents difficulties.

In 1948 and 1953, Alfred Kinsey reported that nearly 46% of the male subjects had "reacted" sexually to persons of both sexes in the course of their adult lives, and 37% had had at least one homosexual experience.[124][125] Kinsey's methodology was criticized by John Tukey for using convenience samples and not random samples.[126][127] A later study tried to eliminate the sample bias, but still reached similar conclusions.[128] Simon LeVay cites these Kinsey results as an example of the caution needed to interpret demographic studies, as they may give quite differing numbers depending on what criteria are used to conduct them, in spite of using sound scientific methods.[14]

According to major studies, 2% to 11% of people have had some form of same-sex sexual contact within their lifetime;[129][130][131][132][133][134][135][136][137][138] this percentage rises to 16–21% when either or both same-sex attraction and behavior are reported.[138] In a 2006 study, 20% of respondents anonymously reported some homosexual feelings, although only 2–3% identified themselves as homosexual.[139] A 1992 study reported that 6.1% of males in Britain have had a homosexual experience, while in France the number was reported at 4.1%.[140]

In the United States, according to a report by The Williams Institute in April 2011, 3.5% or approximately 9 million of the adult population identify as lesbian, gay, or bisexual.[141][142] According to the 2000 United States Census, there were about 601,209 same-sex unmarried partner households.[143]

A 2013 study by the CDC in which over 34,000 Americans were interviewed, puts the percentage of self-identifying lesbians and gay men at 1.6% and of bisexuals at 0.7%.[144]

According to a 2008 poll, 13% of Britons have had some form of same-sex sexual contact while only 6% of Britons identify themselves as either homosexual or bisexual.[145] In contrast, a survey by the UK Office for National Statistics (ONS) in 2010 found that 95% of Britons identified as heterosexual, 1.5% of Britons identified themselves as homosexual or bisexual, and the last 3.5% gave more vague answers such as "don't know", "other", or did not respond to the question.[125][146]

In October 2012, Gallup started conducting annual surveys to study the demographics of LGBT people, determining that 3.4% (±1%) of adults identified as LGBT in the United States.[147] It was the nation's largest poll on the issue at the time.[148][149] In 2017, the percentage was estimated to have risen to 4.5% of adults, with the increase largely driven by Millennials. The poll attributes the rise to greater willingness of younger people to reveal their sexual identity.[150]

Psychology


The American Psychological Association, the American Psychiatric Association, and the National Association of Social Workers state:

The consensus of research and clinical literature demonstrates that same-sex sexual and romantic attractions, feelings, and behaviors are normal and positive variations of human sexuality.[152] There is now a large body of research evidence that indicates that being gay, lesbian or bisexual is compatible with normal mental health and social adjustment.[10] The World Health Organization's ICD-9 (1977) listed homosexuality as a mental illness; it was removed from the ICD-10, endorsed by the Forty-third World Health Assembly on 17 May 1990.[153][154][155] Like the DSM-II, the ICD-10 added ego-dystonic sexual orientation to the list, which refers to people who want to change their gender identities or sexual orientation because of a psychological or behavioral disorder (F66.1 [323] ). The Chinese Society of Psychiatry removed homosexuality from its Chinese Classification of Mental Disorders in 2001 after five years of study by the association.[156] According to the Royal College of Psychiatrists "This unfortunate history demonstrates how marginalisation of a group of people who have a particular personality feature (in this case homosexuality) can lead to harmful medical practice and a basis for discrimination in society.[10] There is now a large body of research evidence that indicates that being gay, lesbian or bisexual is compatible with normal mental health and social adjustment. However, the experiences of discrimination in society and possible rejection by friends, families and others, such as employers, means that some LGB people experience a greater than expected prevalence of mental health difficulties and substance misuse problems. Although there have been claims by conservative political groups in the USA that this higher prevalence of mental health difficulties is confirmation that homosexuality is itself a mental disorder, there is no evidence whatever to substantiate such a claim."[157]

Most lesbian, gay, and bisexual people who seek psychotherapy do so for the same reasons as heterosexual people (stress, relationship difficulties, difficulty adjusting to social or work situations, etc.); their sexual orientation may be of primary, incidental, or no importance to their issues and treatment.

The appropriate application of affirmative psychotherapy is based on the following scientific facts:[152]

  • Same-sex sexual attractions, behavior, and orientations per se are normal and positive variants of human sexuality; in other words, they are not indicators of mental or developmental disorders.
  • Homosexuality and bisexuality are stigmatized, and this stigma can have a variety of negative consequences (e.g., minority stress) throughout the life span (D'Augelli & Patterson, 1995; DiPlacido, 1998; Herek & Garnets, 2007; Meyer, 1995, 2003).
  • Same-sex sexual attractions and behavior can occur in the context of a variety of sexual orientations and sexual orientation identities (Diamond, 2006; Hoburg et al., 2004; Rust, 1996; Savin-Williams, 2005).
  • Gay men, lesbians, and bisexual individuals can live satisfying lives as well as form stable, committed relationships and families that are equivalent to heterosexual relationships in essential respects (APA, 2005c; Kurdek, 2001, 2003, 2004; Peplau & Fingerhut, 2007).
  • There are no empirical studies or peer-reviewed research that support theories attributing same-sex sexual orientation to family dysfunction or trauma (Bell et al., 1981; Bene, 1965; Freund & Blanchard, 1983; Freund & Pinkava, 1961; Hooker, 1969; McCord et al., 1962; D. K. Peters & Cantrell, 1991; Siegelman, 1974, 1981; Townes et al., 1976).

Causes


Although scientists favor biological models for the cause of sexual orientation,[3] they do not believe that the development of sexual orientation is the result of any one factor.

The American Academy of Pediatrics stated in Pediatrics

The American Psychological Association, American Psychiatric Association, and National Association of Social Workers stated in 2006:

Despite numerous attempts, no "gay gene" has been identified.

Starting in the 2010s, potential epigenetic factors have become a topic of increased attention in genetic research on sexual orientation. A study presented at the ASHG 2015 Annual Meeting found that the methylation pattern in nine regions of the genome appeared very closely linked to sexual orientation, with a resulting algorithm using the methylation pattern to predict the sexual orientation of a control group with almost 70% accuracy.[164][165]

Research into the causes of homosexuality plays a role in political and social debates and also raises concerns about genetic profiling and prenatal testing.[166][167]

Since homosexuality tends to lower reproductive success, and since there is considerable evidence that human sexual orientation is genetically influenced, it is unclear how it is maintained in the population at a relatively high frequency.[168] There are many possible explanations, such as genes predisposing to homosexuality also conferring advantage in heterosexuals, a kin selection effect, social prestige, and more.[169] A 2009 study also suggested a significant increase in fecundity in the females related to the homosexual people from the maternal line (but not in those related from the paternal one).[170]

There are no studies of adequate scientific rigor that conclude that sexual orientation change efforts work to change a person's sexual orientation.

No major mental health professional organization has sanctioned efforts to change sexual orientation and virtually all of them have adopted policy statements cautioning the profession and the public about treatments that purport to change sexual orientation.

The American Psychological Association states that "sexual orientation is not a choice that can be changed at will, and that sexual orientation is most likely the result of a complex interaction of environmental, cognitive and biological factors...is shaped at an early age...[and evidence suggests] biological, including genetic or inborn hormonal factors, play a significant role in a person's sexuality."[4] They say that "sexual orientation identity—not sexual orientation—appears to change via psychotherapy, support groups, and life events."[13] The American Psychiatric Association says "individuals maybe become aware at different points in their lives that they are heterosexual, gay, lesbian, or bisexual" and "opposes any psychiatric treatment, such as 'reparative' or 'conversion' therapy, which is based upon the assumption that homosexuality per se is a mental disorder, or based upon a prior assumption that the patient should change his/her homosexual orientation". They do, however, encourage gay affirmative psychotherapy.[103] Similarly, the American Psychological Association[176] is doubtful about the effectiveness and side-effect profile of sexual orientation change efforts, including conversion therapy.

The American Psychological Association "encourages mental health professionals to avoid misrepresenting the efficacy of sexual orientation change efforts by promoting or promising change in sexual orientation when providing assistance to individuals distressed by their own or others' sexual orientation and concludes that the benefits reported by participants in sexual orientation change efforts can be gained through approaches that do not attempt to change sexual orientation".[13]

Parenting


Scientific research has been generally consistent in showing that lesbian and gay parents are as fit and capable as heterosexual parents, and their children are as psychologically healthy and well-adjusted as children reared by heterosexual parents.[177][178][179] According to scientific literature reviews, there is no evidence to the contrary.[2][180][181][182][183]

A 2001 review suggested that the children with lesbian or gay parents appear less traditionally gender-typed and are more likely to be open to homoerotic relationships, partly due to genetic (80% of the children being raised by same-sex couples in the US are not adopted and most are the result of heterosexual marriages.[184]) and family socialization processes (children grow up in relatively more tolerant school, neighborhood, and social contexts, which are less heterosexist), even though majority of children raised by same-sex couples identify as heterosexual.[185] A 2005 review by Charlotte J. Patterson for the American Psychological Association found that the available data did not suggest higher rates of homosexuality among the children of lesbian or gay parents.[186]

Health


The terms "men who have sex with men" (MSM) and "women who have sex with women" (WSW) refer to people who engage in sexual activity with others of the same sex regardless of how they identify themselves—as many choose not to accept social identities as lesbian, gay and bisexual.[187][188][189][190][191] These terms are often used in medical literature and social research to describe such groups for study, without needing to consider the issues of sexual self-identity. The terms are seen as problematic by some, however, because they "obscure social dimensions of sexuality; undermine the self-labeling of lesbian, gay, and bisexual people; and do not sufficiently describe variations in sexual behavior".[192]

In contrast to its benefits, sexual behavior can be a disease vector. Safe sex is a relevant harm reduction philosophy.[193] Many countries currently prohibit men who have sex with men from donating blood; the policy of the United States Food and Drug Administration states that "they are, as a group, at increased risk for HIV, hepatitis B and certain other infections that can be transmitted by transfusion."[194]

These safer sex recommendations are agreed upon by public health officials for women who have sex with women to avoid sexually transmitted infections (STIs):

  • Avoid contact with a partner's menstrual blood and with any visible genital lesions.
  • Cover sex toys that penetrate more than one person's vagina or anus with a new condom for each person; consider using different toys for each person.
  • Use a barrier (e.g., latex sheet, dental dam, cut-open condom, plastic wrap) during oral sex.
  • Use latex or vinyl gloves and lubricant for any manual sex that might cause bleeding.[195]

These safer sex recommendations are agreed upon by public health officials for men who have sex with men to avoid sexually transmitted infections:

  • Avoid contact with a partner's bodily fluids and with any visible genital lesions.
  • Use condoms for anal and oral sex.
  • Use a barrier (e.g., latex sheet, dental dam, cut-open condom) during anal–oral sex.
  • Cover sex toys that penetrate more than one person with a new condom for each person; consider using different toys for each person and use latex or vinyl gloves and lubricant for any sex that might cause bleeding.[196][197]

When it was first described in medical literature, homosexuality was often approached from a view that sought to find an inherent psychopathology as its root cause.

Gay and lesbian youth bear an increased risk of suicide, substance abuse, school problems, and isolation because of a "hostile and condemning environment, verbal and physical abuse, rejection and isolation from family and peers".[201] Further, LGBT youths are more likely to report psychological and physical abuse by parents or caretakers, and more sexual abuse.

Crisis centers in larger cities and information sites on the Internet have arisen to help youth and adults.[204] The Trevor Project, a suicide prevention helpline for gay youth, was established following the 1998 airing on HBO of the Academy Award winning short film Trevor.[205]

Law and politics


Most nations do not prohibit consensual sex between unrelated persons above the local age of consent. Some jurisdictions further recognize identical rights, protections, and privileges for the family structures of same-sex couples, including marriage. Some countries and jurisdictions mandate that all individuals restrict themselves to heterosexual activity and disallow homosexual activity via sodomy laws. Offenders can face the death penalty in Islamic countries and jurisdictions ruled by sharia. There are, however, often significant differences between official policy and real-world enforcement.

Although homosexual acts were decriminalized in some parts of the Western world, such as Poland in 1932, Denmark in 1933, Sweden in 1944, and the England and Wales in 1967, it was not until the mid-1970s that the gay community first began to achieve limited civil rights in some developed countries. A turning point was reached in 1973 when the American Psychiatric Association, which previously listed homosexuality in the DSM-I in 1952, removed homosexuality in the DSM-II, in recognition of scientific evidence.[2] In 1977, Quebec became the first state-level jurisdiction in the world to prohibit discrimination on the grounds of sexual orientation. During the 1980s and 1990s, most developed countries enacted laws decriminalizing homosexual behavior and prohibiting discrimination against lesbian and gay people in employment, housing, and services. On the other hand, many countries today in the Middle East and Africa, as well as several countries in Asia, the Caribbean and the South Pacific, outlaw homosexuality. In 2013, the Supreme Court of India upheld Section 377 of the Indian Penal Code,[206] but in 2018 overturned itself and legalized homosexual activity throughout India.[207] The Section 377, a British colonial-era law which criminalizes homosexual activity, remains in effect in more than 40 former British colonies.[208][209]

10 countries or jurisdictions, all of which are Islamic and ruled by sharia, impose the death penalty for homosexuality.

  • [[LINK|lang_en|Employment_discrimination|Employment discrimination]] refers to discriminatory employment practices such as bias in hiring, promotion, job assignment, termination, and compensation, and various types of harassment. In the United States there is "very little statutory, common law, and case law establishing employment discrimination based upon sexual orientation as a legal wrong."[210] Some exceptions and alternative legal strategies are available. President Bill Clinton's Executive Order 13087 (1998) prohibits discrimination based on sexual orientation in the competitive service of the federal civilian workforce,[211] and federal non-civil service employees may have recourse under the Due Process Clause of the U.S. Constitution.[212] Private sector workers may have a Title VII of the Civil Rights Act of 1964 action under a quid pro quo sexual harassment theory,[213] a "hostile work environment" theory,[214] a sexual stereotyping theory,[215] or others.[210]
  • [[LINK|lang_en|Housing_discrimination|Housing discrimination]] refers to discrimination against potential or current tenants by landlords. In the United States, there is no federal law against such discrimination on the basis of sexual orientation or gender identity, but at least thirteen states and many major cities have enacted laws prohibiting it.[216]
  • [[LINK|lang_en|Hate_crime|Hate crimes]] (also known as bias crimes) are crimes motivated by bias against an identifiable social group, usually groups defined by race (human classification), religion, sexual orientation, disability, ethnicity, nationality, age, gender, gender identity, or political affiliation. In the United States, 45 states and the District of Columbia have statutes criminalizing various types of bias-motivated violence or intimidation (the exceptions are AZ, GA, IN, SC, and WY). Each of these statutes covers bias on the basis of race, religion, and ethnicity; 32 of them cover sexual orientation, 28 cover gender, and 11 cover transgender/gender-identity.[217] In October 2009, the Matthew Shepard and James Byrd, Jr. Hate Crimes Prevention Act, which "...gives the Justice Department the power to investigate and prosecute bias-motivated violence where the perpetrator has selected the victim because of the person's actual or perceived race, color, religion, national origin, gender, sexual orientation, gender identity or disability", was signed into law and makes hate crime based on sexual orientation, amongst other offenses, a federal crime in the United States.[218]

In the European Union, discrimination of any type based on sexual orientation or gender identity is illegal under the Charter of Fundamental Rights of the European Union.[219]

Since the 1960s, many LGBT people in the West, particularly those in major metropolitan areas, have developed a so-called gay culture. To many, gay culture is exemplified by the gay pride movement, with annual parades and displays of rainbow flags. Yet not all LGBT people choose to participate in "queer culture", and many gay men and women specifically decline to do so. To some it seems to be a frivolous display, perpetuating gay stereotypes.

With the outbreak of AIDS in the early 1980s, many LGBT groups and individuals organized campaigns to promote efforts in AIDS education, prevention, research, patient support, and community outreach, as well as to demand government support for these programs.

The death toll wrought by the AIDS epidemic at first seemed to slow the progress of the gay rights movement, but in time it galvanized some parts of the LGBT community into community service and political action, and challenged the heterosexual community to respond compassionately.

Publicly gay politicians have attained numerous government posts, even in countries that had sodomy laws in their recent past. Examples include Guido Westerwelle, Germany's Vice-Chancellor; Peter Mandelson, a British Labour Party cabinet minister and Per-Kristian Foss, formerly Norwegian Minister of Finance.

LGBT movements are opposed by a variety of individuals and organizations.

Policies and attitudes toward gay and lesbian military personnel vary widely around the world. Some countries allow gay men, lesbians, and bisexual people to serve openly and have granted them the same rights and privileges as their heterosexual counterparts. Many countries neither ban nor support LGB service members. A few countries continue to ban homosexual personnel outright.

Most Western military forces have removed policies excluding sexual minority members.

While the question of homosexuality in the military has been highly politicized in the United States, it is not necessarily so in many countries.

According to American Psychological Association, empirical evidence fails to show that sexual orientation is germane to any aspect of military effectiveness including unit cohesion, morale, recruitment and retention.[240] Sexual orientation is irrelevant to task cohesion, the only type of cohesion that critically predicts the team's military readiness and success.[241]

Society and sociology


Societal acceptance of non-heterosexual orientations such as homosexuality is lowest in Asian, African and Eastern European countries,[242][243] and is highest in Western Europe, Australia, and the Americas. Western society has become increasingly accepting of homosexuality since the 1990s. In 2017, Professor Amy Adamczyk contended that these cross-national differences in acceptance can be largely explained by three factors: the relative strength of democratic institutions, the level of economic development, and the religious context of the places where people live.[244]

In 2006, the American Psychological Association, American Psychiatric Association and National Association of Social Workers stated in an amicus brief presented to the Supreme Court of California: "Gay men and lesbians form stable, committed relationships that are equivalent to heterosexual relationships in essential respects. The institution of marriage offers social, psychological, and health benefits that are denied to same-sex couples. By denying same-sex couples the right to marry, the state reinforces and perpetuates the stigma historically associated with homosexuality. Homosexuality remains stigmatized, and this stigma has negative consequences. California's prohibition on marriage for same-sex couples reflects and reinforces this stigma". They concluded: "There is no scientific basis for distinguishing between same-sex couples and heterosexual couples with respect to the legal rights, obligations, benefits, and burdens conferred by civil marriage."[2]

Though the relationship between homosexuality and religion is complex, current authoritative bodies and doctrines of the world's largest religions view homosexual behaviour negatively. This can range from quietly discouraging homosexual activity, to explicitly forbidding same-sex sexual practices among adherents and actively opposing social acceptance of homosexuality. Some teach that homosexual desire itself is sinful,[245] others state that only the sexual act is a sin,[246] others are completely accepting of gays and lesbians,[247] while some encourage homosexuality.[248] Some claim that homosexuality can be overcome through religious faith and practice. On the other hand, voices exist within many of these religions that view homosexuality more positively, and liberal religious denominations may bless same-sex marriages. Some view same-sex love and sexuality as sacred, and a mythology of same-sex love can be found around the world.[249]

Discrimination


Gay bullying can be the verbal or physical abuse against a person who is perceived by the aggressor to be lesbian, gay, bisexual or transgender, including persons who are actually heterosexual or of non-specific or unknown sexual orientation. In the US, teenage students heard anti-gay slurs such as "homo", "faggot" and "sissy" about 26 times a day on average, or once every 14 minutes, according to a 1998 study by Mental Health America (formerly National Mental Health Association).[250]

In many cultures, homosexual people are frequently subject to prejudice and discrimination.

Negative stereotypes characterize LGB people as less romantically stable, more promiscuous and more likely to abuse children, but there is no scientific basis to such assertions. Gay men and lesbians form stable, committed relationships that are equivalent to heterosexual relationships in essential respects.[2] Sexual orientation does not affect the likelihood that people will abuse children.[253][254][186] Claims that there is scientific evidence to support an association between being gay and being a pedophile are based on misuses of those terms and misrepresentation of the actual evidence.[254]

In the United States, the FBI reported that 20.4% of hate crimes reported to law enforcement in 2011 were based on sexual orientation bias. 56.7% of these crimes were based on bias against homosexual men. 11.1% were based on bias against homosexual women. 29.6% were based on anti-homosexual bias without regard to gender.[256] The 1998 murder of Matthew Shepard, a gay student, is a notorious such incident in the U.S. LGBT people, especially lesbians, may become the victims of "corrective rape", a violent crime with the supposed aim of making them heterosexual. In certain parts of the world, LGBT people are also at risk of "honor killings" perpetrated by their families or relatives.[257][258][259]

In Morocco, a constitutional monarchy following Islamic laws, homosexual acts are a punishable offence. With a population hostile towards LGBT people, the country has witnessed public demonstrations against homosexuals, public denunciations of presumed homosexual individuals, as well as violent intrusions in private homes. The community in the country is exposed to additional risk of prejudice, social rejection and violence, with a greater impossibility of obtaining protection even from the police.[260]

In 2017, Abderrahim El Habachi became one of the many homosexual Moroccans to flee the country for fear, and sought shelter in the United Kingdom. In August 2019, he accused the UK Home Office of not taking LGBT migrants seriously. He highlighted that they are being put through tough times because the Home Office don’t believe their sexual orientation or in the struggles they face in their countries.[261]

Homosexual behavior in other animals


Homosexual and bisexual behaviors occur in a number of other animal species.

A review paper by N. W. Bailey and Marlene Zuk looking into studies of same-sex sexual behaviour in animals challenges the view that such behaviour lowers reproductive success, citing several hypotheses about how same-sex sexual behavior might be adaptive; these hypotheses vary greatly among different species. Bailey and Zuk also suggest future research needs to look into evolutionary consequences of same-sex sexual behaviour, rather than only looking into origins of such behaviour.[265]

See also


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