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
Asia Pacific Coalition on Male Sexual Health Nations officials. Its mission is to assist local organizations in advocacy for the rights of MSMs and transgender males. Asia Pacific Coalition on Male Sexual Health The Asia Pacific Coalition on Male Sexual Health, also known as APCOM, is a network of non-profit organizations which share the mission of improving male sexual health in South Asia, East Asia, and the Pacific Islands. APCOM was launched in July 2007 after delegates to the Delhi 2006 International Consultation on Male Sexual Health and HIV in Asia and the Pacific identified a need for more organization in the field of male sexual health.