Prenatal hormones and sexual orientation Only 23% of childhood gender problems will result in transsexuality in adulthood. Drawing on some transsexualism cases, Garcia-Falgueras and Swaab state that "[f]rom these examples it appears that the direct action of testosterone on the developing brain in boys and the lack of such action on the developing brain in girls are crucial factors in the development of male and female gender identity and sexual orientation ... ." Countless studies have been run on peripheral levels of sex steroids in male and female homosexuals, a considerable number of which claimed to find "less 'male hormone' and/or more 'female hormone' in
Causes of sexual violence use of sexual violence, including as a tactic of war to humiliate, dominate, instil fear in, disperse and/or forcibly relocate civilian members of a community or ethnic group." Refugees and internally displaced people who flee their homes during war and major disasters can experience human trafficking for sexual or labour exploitation due to the breakdown of economies and law and order. Speaking at the UN General Assembly in 2010, the UN Special Rapporteur on Violence Against Women, its Causes and Consequences noted women’s particular vulnerability and increased risk of experiencing violence following disasters. Following the 2010 Haiti earthquake, large numbers