What causes homosexuality

Genetic Influences on Sexual Orientation

Family and twin studies indicate that sexual orientation has a heritable component: relatives of gay people are more likely than average to

Prenatal Biological Factors and Sexual Orientation

Explanation: Researchers propose that biological events before birth can influence later sexual orientation. Key hypotheses include: Hormona

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Why psychosocial/environmental explanations for homosexuality are not supported

Research shows that childhood experiences, parenting, upbringing, or social environment do not reliably determine adult sexual orientation.

Multifactorial and Probabilistic Origins of Sexual Orientation

Most scientists and scholars agree that sexual orientation—whether someone is gay, lesbian, bisexual, or heterosexual—does not arise from a

Genetic influences on sexual orientation

Family and twin studies indicate that genetics contribute to samesex sexual attraction: relatives of gay people are more likely than average

Prenatal Biological Factors and Sexual Orientation

Prenatal biological factors refer to influences on sexual development that occur before birth. Three main hypotheses in this area are: Hormo

Neurodevelopmental differences and sexual orientation

Some studies report correlations between sexual orientation and brain structure or function — for example, differences in hypothalamic nucle

Psychosocial and Environmental Factors and Sexual Orientation

Extensive research shows that childhood experiences and the social environment do not reliably determine adult sexual orientation. Early the

Multifactorial and Probabilistic Origins of Sexual Orientation

Most researchers understand sexual orientation as the result of multiple interacting factors rather than a single cause or a conscious choic