Asexuality is a sexual orientation characterized by a lack of sexual interest in others. Some critics disagree with the classification of asexuality as a sexual orientation, since asexuals are not interested in sexual behavior. However, one could also argue that while asexuals are characterized by not being interested in sex, this is still a facet of sexuality, so it is entirely valid to classify asexuality as a sexual orientation.

The concept of asexuality first began to be explored in the 1940s, and recognized in the 1970s. By the 1990s, an asexual community had arisen, creating a network which asexuals could use to establish connections with each other. As yet, the definition of asexuality is still extremely fluid; for example, some people who consider themselves asexuals do have sex and form romantic relationships. Studies seem to suggest that around one percent of the population is asexual.

Asexuality doesn't preclude friendships, romance, and deep relationships with other people. When someone identifies as asexual, it simply means that he or she does not experience sexual attraction towards other people. However, asexuals can still experience romantic attraction, and an interest in pursuing rich, complex relationships. Some asexuals may identify with two sexual orientations, as in the case of a woman who feels a romantic pull towards other women, who might identify as a lesbian asexual.

This sexual orientation should not be confused with celibacy. Celibacy is an active choice undertaken by someone who wishes to eschew sexuality for personal reasons. Asexuality is not a choice, but rather a natural inclination. As in the case with other sexual orientations, asexuality often manifests at a very young age, with many people identifying asexual traits in themselves as teens going through puberty.

Living as an asexual can be extremely challenging. While people are slowly growing more open to a variety of sexual orientations, the idea of being disinterested in sexuality is puzzling to some. Asexuals may find themselves in awkward discussions in which they are told that they will change their minds if they just give dating a chance, or in which their sexual orientation is dismissed by naysayers. It can also be difficult to pursue relationships as an asexual, with most asexuals preferring to date other people who identify as asexuals due to expectations which can arise in relationships with “sexuals,” as the asexual community refers to people who do experience sexual attraction.