User:MishMich/Homosexuality



Homosexuality is romantic or sexual attraction or behavior among members of the same sex. As a sexual orientation, homosexuality refers to "an enduring pattern of or disposition to experience sexual, affectional, or romantic attractions primarily to" people of the same sex; "it also refers to an individual’s sense of personal and social identity based on those attractions, behaviors expressing them, and membership in a community of others who share them."

Homosexuality is one of the three main categories of sexual orientation, along with bisexuality and heterosexuality, within the heterosexual-homosexual continuum. The longstanding consensus of the behavioral and social sciences and the health and mental health professions is that homosexuality per se is an example of normal and positive variation in human sexual orientation. Currently the most common adjectives in use are lesbian for women and gay for men, though gay can refer to either men or women. The number of people who identify as gay or lesbian — and the proportion of people who have same-sex sexual experiences — are difficult for researchers to estimate reliably for a variety of reasons. In the modern West, major studies indicate a prevalence of 2% to 13% of the population. A 2006 study suggested that 20% of the population anonymously reported some homosexual feelings, although relatively few participants in the study identified themselves as homosexual. Homosexual behavior in animals is also widely encountered.

Etymology and usage


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', such as in Homo sapiens), thus connoting sexual acts and affections between members of the same sex, including lesbianism. Gay generally refers to male homosexuality, 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.

The adjective homosexual describes behavior, relationships, people, orientation, etc. The adjectival form literally means "same sex", being a hybrid formed from Greek homo- (a form of homos "same"), and "sexual" from Medieval Latin sexualis (from Classical Latin sexus). Many modern style guides in the U.S. recommend against using homosexual as a noun, instead using gay man or lesbian. 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. 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.

The first known appearance of homosexual in print is found in an 1869 German pamphlet by the Austrian-born novelist Karl-Maria Kertbeny, published anonymously, arguing against a Prussian anti-sodomy law. In 1879, Gustav Jager used Kertbeny's terms in his book, Discovery of the Soul (1880). In 1886, Richard von Krafft-Ebing used the terms homosexual and heterosexual in his book Psychopathia Sexualis, probably borrowing them from Jager. Krafft-Ebing's book was so popular among both layman and doctors that the terms "heterosexual" and "homosexual" became the most widely accepted terms for sexual orientation.

As such, the current use of the term has its roots in the broader 19th-century tradition of personality taxonomy.

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. Other terms include men who have sex with men or MSM (used in the medical community when specifically discussing sexual activity), homoerotic (referring to works of art), heteroflexible (referring to a person who identifies as heterosexual, but occasionally engages in same-sex sexual activities), and metrosexual (referring to a non-gay man with stereotypically gay tastes in food, fashion, and design). Pejorative terms in English include queer, faggot, fairy, poof, and homo. Beginning in the 1990s, some of these have been 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. The word  occurs in many other languages without the pejorative connotations it has in English. As with ethnic slurs and racial slurs, however, the misuse of these terms can still be highly offensive; the range of acceptable use depends on the context and speaker. Conversely, gay, a word originally embraced by homosexual men and women as a positive, affirmative term (as in gay liberation and gay rights), has come into widespread pejorative use among young people.

Perspectives
Many pure and human scientific fields have elaborated opinions on homosexuality.

Biology
Biology has attempted to ascertain the origins of homosexuality in several ways. A disputed study links homosexuality with the Xq28 genetic marker. In 1995 Hamer found correlation between homosexuality and the genetic marker. In more recent studies it is demonstrated that brain response to male [putative pheromones] in homosexual male's [amygdala] is comparable to the response observed in heterosexual women; similarly, the brain response to female pheromones in homosexual women is comparable to the brain response observed in heterosexual men.

Medicine
Men who have sex with men (MSM) and women who have sex with women (WSW) refers 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. 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, however, because it "obscures social dimensions of sexuality; undermines the self-labeling of lesbian, gay, and bisexual people; and does not sufficiently describe variations in sexual behavior". MSM and WSW are sexually active with each other for a variety of reasons with the main ones arguably sexual pleasure, intimacy and bonding. In contrast to its benefits, sexual behavior can be a disease vector. Safe sex is a relevant harm reduction philosophy.

The American Psychological Association, American Psychiatric Association, and National Association of Social Workers stated in 2006: Currently, there is no scientific consensus about the specific factors that cause an individual to become heterosexual, homosexual, or bisexual — including possible biological, psychological, or social effects of the parents’ sexual orientation. However, the available evidence indicates that the vast majority of lesbian and gay adults were raised by heterosexual parents and the vast majority of children raised by lesbian and gay parents eventually grow up to be heterosexual.

The Royal College of Psychiatrists stated in 2007: Despite almost a century of psychoanalytic and psychological speculation, there is no substantive evidence to support the suggestion that the nature of parenting or early childhood experiences play any role in the formation of a person’s fundamental heterosexual or homosexual orientation. It would appear that sexual orientation is biological in nature, determined by a complex interplay of genetic factors and the early uterine environment. Sexual orientation is therefore not a choice.

The American Academy of Pediatrics stated in Pediatrics in 2004: Sexual orientation probably is not determined by any one factor but by a combination of genetic, hormonal, and environmental influences. In recent decades, biologically based theories have been favored by experts. Although there continues to be controversy and uncertainty as to the genesis of the variety of human sexual orientations, there is no scientific evidence that abnormal parenting, sexual abuse, or other adverse life events influence sexual orientation. Current knowledge suggests that sexual orientation is usually established during early childhood.

The main reasons that an individual develops a heterosexual, bisexual, gay, or lesbian orientation cited include genetic and environmental factors, likely in combination. Other factors that may play a role include prenatal hormone exposure, where hormones play a role in determining sexual orientation as they do with sex differentiation;  and prenatal stress on the mother. Biological explanations are becoming more favoured, based chiefly on genetics and prenatal exposure to hormones.

Public Health
According to the American Red Cross, men in the USA who have had sex with men after 1977 have an HIV prevalence sixty times higher than the general population. In the United States, and other countries, men who have sex with men are one of the groups excluded as blood donors "because they are, as a group, at increased risk for HIV, hepatitis B and certain other infections that can be transmitted by transfusion." The UK and many European countries have the same prohibition.

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.

These safer sex recommendations are agreed upon by public health officials for men who have sex with men to avoid sexually transmitted infections (STIs):
 * 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, plastic wrap) 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.

Psychology
Psychology was one of the first disciplines to study a homosexual orientation as a discrete phenomenon. The first attempts to classify homosexuality as a disease were made by the fledgling European sexologist movement in the late 19th century. In 1886 noted sexologist Richard von Krafft-Ebing listed homosexuality along with 200 other case studies of deviant sexual practices in his definitive work, Psychopathia Sexualis. Krafft-Ebing proposed that homosexuality was caused by either "congenital [during birth] inversion" or an "acquired inversion". In the last two decades of the 19th century, a different view began to predominate in medical and psychiatric circles, judging such behavior as indicative of a type of person with a defined and relatively stable sexual orientation. In the late 19th and early 20th centuries, pathological models of homosexuality were standard.

The American Psychological Association, the American Psychiatric Association, and the National Association of Social Workers state: In 1952, when the American Psychiatric Association published its first Diagnostic and Statistical Manual of Mental Disorders, homosexuality was included as a disorder. Almost immediately, however, that classification began to be subjected to critical scrutiny in research funded by the National Institute of Mental Health. That study and subsequent research consistently failed to produce any empirical or scientific basis for regarding homosexuality as a disorder or abnormality, rather than a normal and healthy sexual orientation. As results from such research accumulated, professionals in medicine, mental health, and the behavioral and social sciences reached the conclusion that it was inaccurate to classify homosexuality as a mental disorder and that the DSM classification reflected untested assumptions based on once-prevalent social norms and clinical impressions from unrepresentative samples comprising patients seeking therapy and individuals whose conduct brought them into the criminal justice system.

In recognition of the scientific evidence, the American Psychiatric Association removed homosexuality from the DSM in 1973, stating that “homosexuality per se implies no impairment in judgment, stability, reliability, or general social or vocational capabilities.” After thoroughly reviewing the scientific data, the American Psychological Association adopted the same position in 1975, and urged all mental health professionals “to take the lead in removing the stigma of mental illness that has long been associated with homosexual orientations.” The National Association of Social Workers has adopted a similar policy.

Thus, mental health professionals and researchers have long recognized that being homosexual poses no inherent obstacle to leading a happy, healthy, and productive life, and that the vast majority of gay and lesbian people function well in the full array of social institutions and interpersonal relationships.

The research and clinical literature demonstrate that same-sex sexual and romantic attractions, feelings, and behaviors are normal and positive variations of human sexuality. The longstanding consensus of the behavioral and social sciences and the health and mental health professions is that homosexuality per se is a normal and positive variation of human sexual orientation. 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 May 17, 1990. 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. The Chinese Society of Psychiatry removed homosexuality from its Chinese Classification of Mental Disorders in 2001 after five years of study by the association. 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. 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 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."

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. Whatever the issue, there is a high risk for anti-gay bias in psychotherapy with lesbian, gay, and bisexual clients. Psychological research in this area has been relevant to counteracting prejudicial ("homophobic") attitudes and actions, and to the LGBT rights movement generally.

The appropriate application of affirmative psychotherapy is based on the following scientific facts :
 * 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).

The American Psychological Association states "there are probably many reasons for a person's sexual orientation and the reasons may be different for different people", and says most people's sexual orientation is determined at an early age. Research into how sexual orientation in males may be determined by genetic or other prenatal factors plays a role in political and social debates about homosexuality, and also raises fears about genetic profiling and prenatal testing.

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. Much literature on mental health and homosexual patients centered on their depression, substance abuse, and suicide. Although these issues exist among people who are non-heterosexual, discussion about their causes shifted after homosexuality was removed from the Diagnostic and Statistical Manual (DSM) in 1973. Instead, social ostracism, legal discrimination, internalization of negative stereotypes, and limited support structures indicate factors homosexual people face in Western societies that often adversely affect their mental health. Stigma, prejudice, and discrimination stemming from negative societal attitudes toward homosexuality lead to a higher prevalence of mental health disorders among lesbians, gay men, and bisexuals compared to their heterosexual peers. Evidence indicates that the liberalization of these attitudes over the past few decades is associated with a decrease in such mental health risks among younger LGBT people.

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."

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.

Many historical figures, including Socrates, Lord Byron, Edward II, and Hadrian, 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, though others challenge this.

A common thread of constructionist argument is that no one in antiquity or the Middle Ages experienced homosexuality as an exclusive, permanent, or defining mode of sexuality. John Boswell has countered this argument by citing ancient Greek writings by Plato, which describe individuals exhibiting exclusive homosexuality.

Theology
Professor Michael King states: "The conclusion reached by scientists who have investigated the origins and stability of sexual orientation is that it is a human characteristic that is formed early in life, and is resistant to change. Scientific evidence on the origins of homosexuality is considered relevant to theological and social debate because it undermines suggestions that sexual orientation is a choice."

Society
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. Since the end of the 1800s, there has been a movement towards increased visibility, recognition and legal rights for homosexual people, including the rights to marriage and civil unions, adoption and parenting, employment, military service, and equal access to health care.

Because a homosexual orientation is complex and multi-dimensional, some academics and researchers, especially in Queer studies, have argued that it is a historical and social construction. In 1976 the historian Michel Foucault argued that homosexuality as an identity did not exist in the eighteenth century; that people instead spoke of "sodomy", which referred to sexual acts. Sodomy was a crime that was often ignored but sometimes punished severely (see sodomy law).

The term homosexual is often used in European and American cultures to encompass a person’s entire social identity, which includes self and personality. In Western cultures some people speak meaningfully of gay, lesbian, and bisexual identities and communities. In other cultures, homosexuality and heterosexual labels don’t emphasize an entire social identity or indicate community affiliation based on sexual orientation. Some scholars, such as David Green, state that homosexuality is a modern Western social construct, and as such cannot be used in the context of non-Western male-male sexuality, nor in the pre-modern West.

Development
The authors of a 2008 study stated "there is considerable evidence that human sexual orientation is genetically influenced, so it is not known how homosexuality, which tends to lower reproductive success, is maintained in the population at a relatively high frequency". They hypothesized that "while genes predisposing to homosexuality reduce homosexuals' reproductive success, they may confer some advantage in heterosexuals who carry them". Their results suggested that "genes predisposing to homosexuality may confer a mating advantage in heterosexuals, which could help explain the evolution and maintenance of homosexuality in the population". 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).

Garcia-Falgueras and Swaab state in the abstract of their 2010 study, "The fetal brain develops during the intrauterine period in the male direction through a direct action of testosterone on the developing nerve cells, or in the female direction through the absence of this hormone surge. In this way, our gender identity (the conviction of belonging to the male or female gender) and sexual orientation are programmed or organized into our brain structures when we are still in the womb. There is no indication that social environment after birth has an effect on gender identity or sexual orientation."

Innate bisexuality (or predisposition to bisexuality) is a term introduced by Sigmund Freud, based on work by his associate Wilhelm Fliess, that expounds that all humans are born bisexual but through psychological development – which includes both external and internal factors – become monosexual, while the bisexuality remains in a latent state.

Lesbian narratives and awareness of their sexual orientation
Lesbians often experience their sexuality differently from gay men, and have different understandings about etiology than 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.

Respondents to Hite's questions indicated that 8% preferred sex with women and 9% answered that they identified as bisexual or had sexual experiences with men and women, though they refused to indicate preference. Hite's conclusions are more based on respondents' comments than quantifiable data. She found it "striking" that many women who had no lesbian experiences indicated they were interested in sex with women, particularly because the question was not asked. Hite found the two most significant differences between respondents' experience with men and women were the focus on clitoral stimulation, and more emotional involvement and orgasmic responses. Since Hite performed her study during the popularity of feminism in the 1970s, she also acknowledged that women may have chosen the political identity of a lesbian.

Sexual orientation, sexual identity, sexual behavior
The American Psychological Association, the American Psychiatric Association, and the National Association of Social Workers state: Sexual orientation refers to an enduring pattern of or disposition to experience sexual, affectional, or romantic attractions primarily to men, to women, or to both sexes. It also refers to an individual’s sense of personal and social identity based on those attractions, behaviors expressing them, and membership in a community of others who share them. Although sexual orientation ranges along a continuum from exclusively heterosexual to exclusively homosexual, it is usually discussed in terms of three categories: heterosexual (having sexual and romantic attraction primarily or exclusively to members of the other sex), homosexual (having sexual and romantic attraction primarily or exclusively to members of one’s own sex), and bisexual (having a significant degree of sexual and romantic attraction to both men and women). Sexual orientation is distinct from other components of sex and sexuality, including biological sex (the anatomical, physiological, and genetic characteristics associated with being male or female), gender identity (the psychological sense of being male or female), and social gender role (adherence to cultural norms defining feminine and masculine behavior).

Sexual orientation is commonly discussed as a characteristic of the individual, like biological sex, gender identity, or age. This perspective is incomplete because sexual orientation is always defined in relational terms and necessarily involves relationships with other individuals. Sexual acts and romantic attractions are categorized as homosexual or heterosexual according to the biological sex of the individuals involved in them, relative to each other. Indeed, it is by acting – or desiring to act – with another person that individuals express their heterosexuality, homosexuality, or bisexuality. This includes actions as simple as holding hands with or kissing another person. Thus, sexual orientation is integrally linked to the intimate personal relationships that human beings form with others to meet their deeply felt needs for love, attachment, and intimacy. In addition to sexual behavior, these bonds encompass nonsexual physical affection between partners, shared goals and values, mutual support, and ongoing commitment.

Consequently, sexual orientation is 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 that, for many individuals, comprise an essential component of personal identity.

Fluidity of orientation
The American Psychiatric Association (APA) has stated "some people believe that sexual orientation is innate and fixed; however, sexual orientation develops across a person’s lifetime". In a joint statement with other major American medical organizations, the APA says that "different people realize at different points in their lives that they are heterosexual, gay, lesbian, or bisexual". A report from the Centre for Addiction and Mental Health states: "For some people, sexual orientation is continuous and fixed throughout their lives. For others, sexual orientation may be fluid and change over time". One study has suggested "considerable fluidity in bisexual, unlabeled, and lesbian women's attractions, behaviors, and identities".

Gender and fluidity
In a 2004 study, the female subjects (both gay and straight women) became sexually aroused when they viewed heterosexual as well as lesbian erotic films. Among the male subjects, however, the straight men were turned on only by erotic films with women, the gay ones by those with men. The study's senior researcher said that women's sexual desire is less rigidly directed toward a particular sex, as compared with men's, and it's more changeable over time.

Changing sexual orientation
There are no studies of adequate scientific rigor to conclude whether recent sexual orientation change efforts do work to change a person’s sexual orientation. Those efforts has been controversial due to tensions between the values held by some faith-based organizations, on the one hand, and those held by lesbian, gay, and bisexual rights organizations and professional and scientific organizations, on the other. The longstanding consensus of the behavioral and social sciences and the health and mental health professions is that homosexuality per se is a normal and positive variation of human sexual orientation. The American Psychological Association says that "most people experience little or no sense of choice about their sexual orientation". Some individuals and groups have promoted the idea of homosexuality as symptomatic of developmental defects or spiritual and moral failings and have argued that sexual orientation change efforts, including psychotherapy and religious efforts, could alter homosexual feelings and behaviors. Many of these individuals and groups appeared to be embedded within the larger context of conservative religious political movements that have supported the stigmatization of homosexuality on political or religious grounds.

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. These include the American Psychiatric Association, American Psychological Association, American Counseling Association, National Association of Social Workers in the USA, the Royal College of Psychiatrists , and the Australian Psychological Society. The American Psychological Association and the Royal College of Psychiatrists expressed concerns that the positions espoused by NARTH are not supported by the science and create an environment in which prejudice and discrimination can flourish.

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".

Gender identity
The earliest writers on a homosexual orientation usually understood it to be intrinsically linked to the subject's own sex. For example, it was thought that a typical female-bodied person who is attracted to female-bodied persons would have masculine attributes, and vice versa. This understanding was shared by most of the significant theorists of homosexuality from the mid 19th to early 20th centuries, such as Karl Heinrich Ulrichs, Richard von Krafft-Ebing, Magnus Hirschfeld, Havelock Ellis, Carl Jung and Sigmund Freud, as well as many gender variant homosexual people themselves. However, this understanding of homosexuality as sexual inversion was disputed at the time, and through the second half of the 20th century, gender identity came to be increasingly seen as a phenomenon distinct from sexual orientation.

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. Richard C. Friedman, in Male Homosexuality published in 1990, writing from a psychoanalytic perspective, argues that sexual desire begins later than the writings of Sigmund Freud indicate, not in infancy but between the ages of 5 and 10 and is not focused on a parent figure but on peers. As a consequence, he reasons, homosexual men are not abnormal, never having been sexually attracted to their mothers anyway.

Coming-out process
Many people who feel attracted to members of their own sex have a so-called "coming out" at some point in their lives. Generally, coming out is described in three phases. The first phase is the phase of "knowing oneself," and the realization or decision emerges that one is open to same-sex relations. 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, and/or colleagues. This occurs with many people as early as age 11, but others do not clarify their sexual orientation until age 40 or older. The third phase more generally involves living openly as an LGBT person. 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. Unlike members of other minority groups (e.g., ethnic and racial minorities), most LGB individuals are not raised in a community of similar others from whom they learn about their identity and who reinforce and support that identity. Rather, LGB individuals are often raised in communities that are either ignorant of or openly hostile toward homosexuality."

Outing is the practice of publicly revealing the sexual orientation of a closeted person. 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, while some encourage outing public figures who use their positions of influence to harm other gay people.

Gay and lesbian youth
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". Further, LGB youths are more likely to report psychological and physical abuse by parents or caretakers, and more sexual abuse. Suggested reasons for this disparity are that (1) LGBT youths may be specifically targeted on the basis of their perceived sexual orientation or gender non-conforming appearance, and (2) that "risk factors associated with sexual minority status, including discrimination, invisibility, and rejection by family members...may lead to an increase in behaviors that are associated with risk for victimization, such as substance abuse, sex with multiple partners, or running away from home as a teenager." A 2008 study showed a correlation between the degree of rejecting behavior by parents of LGB adolescents and negative health problems in the teenagers studied: Higher rates of family rejection were significantly associated with poorer health outcomes. On the basis of odds ratios, lesbian, gay, and bisexual young adults who reported higher levels of family rejection during adolescence were 8.4 times more likely to report having attempted suicide, 5.9 times more likely to report high levels of depression, 3.4 times more likely to use illegal drugs, and 3.4 times more likely to report having engaged in unprotected sexual intercourse compared with peers from families that reported no or low levels of family rejection.

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

Same-sex romance and relationships
People with a homosexual orientation can express their sexuality in a variety of ways, and may or may not express it in their behaviors. Some have sexual relationships predominately with people of their own gender identity, another gender, bisexual relationships or they can be celibate. Research indicates that many lesbians and gay men want, and succeed in having, committed and durable relationships. For example, survey data indicate that between 40% and 60% of gay men and between 45% and 80% of lesbians are currently involved in a romantic relationship. Survey data also indicates 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. Studies have found same-sex and opposite-sex couples to be equivalent to each other in measures of satisfaction and commitment in romantic relationships, that age and gender are more reliable than sexual orientation as a predictor of satisfaction and commitment to a romantic relationship, and that people who are heterosexual or homosexual share comparable expectations and ideals with regard to romantic relationships.

Parenting
LGBT parenting is when lesbian, gay, bisexual, and transgender (LGBT) people are parents to one or more children, either as biological or non-biological parents. Gay men face options which include: "foster care, variations of domestic and international adoption, diverse forms of surrogacy (whether "traditional" or gestational), and kinship arrangements, wherein they might coparent with a woman or women with whom they are intimately but not sexually involved." LGBT parents can also include single people who are parenting; to a lesser extent, the term sometimes refers to families with LGBT children.

In the 2000 U.S. Census, 33 percent of female same-sex couple households and 22 percent of male same-sex couple households reported at least one child under eighteen living in their home. Some children do not know they have an LGB parent; coming out issues vary and some parents may never come out to their children. LGBT parenting in general, and adoption by LGBT couples may be controversial in some countries. In January 2008, the European Court of Human Rights ruled that same-sex couples have the right to adopt a child. In the U.S., LGB people can legally adopt in all states except for Florida.

There is a consensus among credible scientific researchers which confirms the abilities of gay and lesbian persons as parents, and finds positive outcomes for their children. Statements by the leading associations of experts in this area reflect professional consensus that children raised by lesbian or gay parents do not differ in any important respects from those raised by heterosexual parents. No credible empirical research suggests otherwise. If gay, lesbian, or bisexual parents were inherently less capable than otherwise comparable heterosexual parents, their children would evidence problems regardless of the type of sample. This pattern clearly has not been observed. Given the consistent failures in this research literature to disprove the null hypothesis, the burden of empirical proof is on those who argue that the children of sexual minority parents fare worse than the children of heterosexual parents.

Homosexual behavior in animals
Homosexual behavior in animals refers to the documented evidence of homosexual, bisexual and transgender behavior in non-human animals. Such behaviors include sex, courtship, affection, pair bonding, and parenting. Homosexual and bisexual behavior are widespread in the animal kingdom: a 1999 review by researcher Bruce Bagemihl shows that homosexual behavior has been observed in close to 1500 species, ranging from primates to gut worms, and is well documented for 500 of them. Animal sexual behavior takes many different forms, even within the same species. The motivations for and implications of these behaviors have yet to be fully understood, since most species have yet to be fully studied. According to Bagemihl, "the animal kingdom [does] it with much greater sexual diversity -- including homosexual, bisexual and nonreproductive sex -- than the scientific community and society at large have previously been willing to accept."

Books

 * Adam, Barry (1987). The Rise of a Gay and Lesbian Movement, G. K. Hall & Co. ISBN 0805797149
 * Dover, Kenneth J., Greek Homosexuality,, Gerald Duckworth & Co. Ltd. 1979, ISBN 0-674-36261-6 (hardcover), ISBN 0-674-36270-5 (paperback)
 * d'Emilio, John Sexual Politics, Sexual Communities: The Making of a Homosexual Minority in the United States, 1940-1970, University of Chicago Press 1983, ISBN 0226142655
 * Roth, Norman. The care and feeding of gazelles - Medieval Arabic and Hebrew love poetry. IN: Lazar & Lacy. Poetics of Love in the Middle Ages, George Mason University Press 1989, ISBN 0913969257
 * 1990s
 * Bérubé, Allan, Coming out under Fire: The History of Gay Men and Women in World War Two, New York: MacMillan 1990, ISBN 0029031001
 * Hinsch, Bret, Passions of the Cut Sleeve: The Male Homosexual Tradition in China, The University of California Press, 1990, ISBN 0-520-06720-7
 * Rousseau, George, Perilous Enlightenment: Pre- and Post-Modern Discourses—Sexual, Historical, Manchester University Press 1991, ISBN 0719033012
 * 2000s
 * Gunther, Scott, "The Elastic Closet: A History of Homosexuality in France, 1942-present" Book about the history of homosexual movements in France (sample chapter available online). Palgrave-Macmillan, 2009. ISBN 023022105X.
 * Hinsch, Bret, Passions of the Cut Sleeve: The Male Homosexual Tradition in China, The University of California Press, 1990, ISBN 0-520-06720-7
 * Rousseau, George, Perilous Enlightenment: Pre- and Post-Modern Discourses—Sexual, Historical, Manchester University Press 1991, ISBN 0719033012
 * 2000s
 * Gunther, Scott, "The Elastic Closet: A History of Homosexuality in France, 1942-present" Book about the history of homosexual movements in France (sample chapter available online). Palgrave-Macmillan, 2009. ISBN 023022105X.
 * Hinsch, Bret, Passions of the Cut Sleeve: The Male Homosexual Tradition in China, The University of California Press, 1990, ISBN 0-520-06720-7
 * Rousseau, George, Perilous Enlightenment: Pre- and Post-Modern Discourses—Sexual, Historical, Manchester University Press 1991, ISBN 0719033012
 * 2000s
 * Gunther, Scott, "The Elastic Closet: A History of Homosexuality in France, 1942-present" Book about the history of homosexual movements in France (sample chapter available online). Palgrave-Macmillan, 2009. ISBN 023022105X.
 * Rousseau, George, Perilous Enlightenment: Pre- and Post-Modern Discourses—Sexual, Historical, Manchester University Press 1991, ISBN 0719033012
 * 2000s
 * Gunther, Scott, "The Elastic Closet: A History of Homosexuality in France, 1942-present" Book about the history of homosexual movements in France (sample chapter available online). Palgrave-Macmillan, 2009. ISBN 023022105X.
 * 2000s
 * Gunther, Scott, "The Elastic Closet: A History of Homosexuality in France, 1942-present" Book about the history of homosexual movements in France (sample chapter available online). Palgrave-Macmillan, 2009. ISBN 023022105X.
 * Gunther, Scott, "The Elastic Closet: A History of Homosexuality in France, 1942-present" Book about the history of homosexual movements in France (sample chapter available online). Palgrave-Macmillan, 2009. ISBN 023022105X.
 * Gunther, Scott, "The Elastic Closet: A History of Homosexuality in France, 1942-present" Book about the history of homosexual movements in France (sample chapter available online). Palgrave-Macmillan, 2009. ISBN 023022105X.
 * Gunther, Scott, "The Elastic Closet: A History of Homosexuality in France, 1942-present" Book about the history of homosexual movements in France (sample chapter available online). Palgrave-Macmillan, 2009. ISBN 023022105X.
 * Gunther, Scott, "The Elastic Closet: A History of Homosexuality in France, 1942-present" Book about the history of homosexual movements in France (sample chapter available online). Palgrave-Macmillan, 2009. ISBN 023022105X.

Online articles

 * Burr, Chandler. Homosexuality and biology. The Atlantic, June 1997, . An overview of recent research in layman's language.
 * BBC News (Feb 1998): Fingerprints Study
 * BBC News (Apr 1999): Doubt cast on 'gay gene'
 * WebMD (March 2000): Pointing the Finger at Androgen as a Cause of Homosexuality
 * BBC News (Oct 2004): Genetics of homosexuality
 * James Davidson, London Review of Books, June 2, 2005, "Mr and Mr and Mrs and Mrs" – detailed review of The Friend, by Alan Bray, a history of same-sex marriage and other same-sex formal bonds

Homoseksualiteit مثلية جنسية Homosexualidá সমকামিতা Гомасексуалізм Гомасэксуальнасьць Homosexualität Homoseksualnost Heñvelrevelezh Хомосексуалност Homosexualitat Homosexualita Cyfunrywioldeb Homoseksualitet Homosexualität Homoseksuaalsus Ομοφυλοφιλία Homosexualidad Samseksemo Homosexualitate fa:همجنس‌گرایی Samkynd Homosexualité Co-ghnèitheachd Homosexualidade 동성애 Միասեռականություն समलैंगिकता Homoseksualnost Homoseksualitas Homosexualitate Samkynhneigð Omosessualità הומוסקסואליות ჰომოსექსუალობა Homoseksûelî Homophylophilia Homoseksualitāte Homosexualitéit Homoseksualumas Omosessualitæ Omosessüalità Homoszexualitás Хомосексуалност സ്വവർഗ്ഗരതി समलैंगिकता arz:هوموسكسواليه Kehomoseksualan Гомосекс Cuīlonyōtl Homoseksualiteit समलिँगी 同性愛 Homofili Homofili Omosexualitat Gomoseksuallik Omossessualità Homoseksualizm Homossexualidade Homosexualitate Гомосексуальность Homosexuality Omusissualità Homosexuality Homosexualita Homoseksualnost szl:Buzeranctwo Хомосексуалност Homoseksualnost Homoseksuaalisuus Homosexualitet Homoseksuwalidad தற்பால்சேர்க்கை స్వలింగ సంపర్కం รักร่วมเพศ Eşcinsellik Гомосексуалізм Đồng tính luyến ái 同性戀 Homo האמאסעקסואלוטעט 同性戀 同性戀