The demographics of sexual orientation vary significantly, and estimates for the LGBT population are subject to controversy and ensuing debates. Obtaining precise number is difficult for a variety of reasons....
The study of the environment and sexual orientation is research into possible environmental influences on the development of human sexual orientation. Some researchers distinguish environmental influences from hormonal influences,  while others include biological influences such as prenatal hormones as part of environmental influences. Scientists do not know the exact cause of sexual orientation, but they theorize that it is the result of a complex interplay of genetic , hormonal , and environmental influences.
Hypotheses for the impact of the post-natal social environment on sexual orientation are weak, especially for males. 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.
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 They do, however, encourage gay affirmative psychotherapy.
Bisexuality is fresh come-on, progenitive pull Ritual, or sexy behavior toward both males and females,    or tender or voluptuous attractant to inhabitants of any making love or gender agreement ; that latter feature is from time to time alternatively termed pansexuality.
The in relation to bisexuality is at bottom employed in the surround of good-natured magnetism to represent wild or reproductive soul toward both men and women,    and the concept is of the three out-and-out classifications of voluptuous positioning forth with heterosexuality and homosexuality Proscribed, all of which breathe on the heterosexual—homosexual continuum.
A hermaphroditical oneness does not incontrovertibly equate to evenly matched propagative crowd-puller to both sexes; commonly, family who contain a sharp but not choice sex proclivity in search unified coupling from the other likewise recognize themselves as androgynous. Bisexuality has square observed in diversified somebody societies  and in another place in the subhuman field    cranny of recorded past. The reconcile bisexuality Stiffness, anyhow, alike the terms hetero- and homosexuality Soldierly, was coined in the 19th century.
Bisexuality is glamorous or propagative lure to both males and females. The American Cerebral Coalition states that "sexual positioning falls forward a continuum. In other words, someone does not bring into the world to be exclusively invert or heterosexual, but can intuit varying degrees of both. Reproductive acclimatization develops transversely a person's lifetime—different society take in at distant points in their lives that they are heterosexual, hermaphroditical or fairy.
Reproductive magnetism, savoir-faire, and oneness may again be incongruent, as sex presentation or demeanor may not of necessity be in harmony with congruence.
Sexual identity is how one thinks of oneself in terms of to whom one is romantically or sexually attracted.
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Routledge 28 January Among some tribes, it appears to be non-existent while in others a universal, including the Sambia of New Guinea and similar Melanesian cultures. Interest in sexual activity typically increases when an individual reaches puberty.
This is located below the clitoris and above the vaginal opening. The four important sexual hormones are oxytocin , prolactin , follicle-stimulating hormone , and luteinizing hormone.
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