復數(shù)：sexual orientations

Sexual orientation is an enduring personal quality that inclines people to feel romantic or sexual attraction (or a combination of these) to persons of the opposite sex or gender, the same sex or gender, or to both sexes or more than one gender. These attractions are generally subsumed under heterosexuality, homosexuality, and bisexuality, while asexuality (the lack of romantic or sexual attraction to others) is sometimes identified as the fourth category.

Sexual Orientation:
Sexual Orientation:
Sexual Orientation:
Finger-length ratios and sexual orientation.
Adolescent sexual orientation and suicide risk: evidence from a national study.
Is sexual orientation related to mental health problems and suicidality in young people?
A linkage between DNA markers on the X chromosome and male sexual orientation
The relationship between suicide risk and sexual orientation: results of a population-based study.
Effects of at-school victimization and sexual orientation on lesbian, gay, or bisexual youths' health risk behavior
The association between health risk behaviors and sexual orientation among a school-based sample of adolescents