What We Know About the Genetic Determinants of Human Homosexuality? A Short Review Communication

Abstract

“Homosexualism”, “sexual orientation disorder”, “egodistonic homosexuality”, “unspecified sexual disorder”, “sexual maturity disorder” and “sexual relationship disorder”. Since 1948, these have been, throughout the history of the Diagnostic and Statistical Manual of Mental Disorders (DCM) and the International Statistical Classification of Diseases and Related Health Problems (ICD), the terms used by the scientific community to categorize the homoaffective spectrum until in 2017, in the face of strong social and academic demand, their complete disengagement from any terminology that categorizes them as physical and/or mental illness. On the other hand, some areas of science have contributed substantially to a better understanding of this subject, such as genetics and epigenetics. Today, although the scientific community still offers some points of resistance, especially in more conservative countries, it is a consensus that since the implementation of the genome project there has been a considerable methodological expansion that has opened new possibilities of studies that have allowed this advance.