Homosexuality
Homosexuality is a sexual orientation. A homosexual person is romantically or sexually attracted to people of their own gender. Men who are romantically or sexually attracted to other men are called gay. Women who are romantically or sexually attracted to other women can be called gay as well, but are usually called lesbians. People who are romantically or sexually attracted to men and women are called bisexual.
Together homosexual, bisexual, and transgender people make up the LGBT community, which stands for Lesbian, Gay, Bisexual, and Transgender. It is difficult to say how many people are homosexual. Homosexuality is known to exist in all cultures and countries.