As more people begin to identify themselves as asexual, their presence is revealing the limits to certain kinds of feminist politics.

Decades after Charles Knowlton died, his book would be credited with the reversal of population growth in England and the popularization of contraception in the United States. 

Some 19th-century utopian idealists took up deeply unconventional sexual arrangements based specifically on their religious beliefs.

What can 1970s sex manuals tell us about the height of the Sexual Revolution? The 1970s was a distinctive sexual decade that’s well worth studying today.

Dating back to at least medieval times, the condom has taken a winding path to social acceptance.

A recent study found that 34 percent of women over 40 are dating younger men, yet these relationships continue to face social disapproval. Why?

Female genital mutilation seems totally foreign to the U.S., but versions of the long-outlawed surgery have seen a recent resurgence.

Despite the perils of mistaken identities, evil stepmothers, and cruel curses, in a Disney movie the princess always finds her prince.

We tend to think of gender expression as uniquely human. But many species gain advantages by projecting an opposite-sex appearance.

Gay Christians have special challenges when it comes to integrating an LGBT identity within a religious identity.