Fortunately, many parents of gay teens understand and are accepting right from the start. 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. In ancient Assyriahomosexuality was present and common; it was also not prohibited, condemned, nor looked upon as immoral or disordered. Conversely, some reject the term gay as an identity-label because they perceive the cultural connotations to be undesirable or because of the negative connotations of the slang usage of the word. However, there is substantial evidence for a genetic basis of homosexuality especially in males based on twin studieswith some association with regions of Chromosome 8 and with the Xq28 gene on the X chromosome. Archived from the original on 20 May
American Psychological Association.
These percentages reflect estimates of the LGBT adult population living in the 50 states and the District of Columbia. Sexual slang. Retrieved 20 December
In many societies of Melanesiaespecially in Papua New Guineasame-sex relationships were an integral part of the culture until the middle of the s.