We're taught that chromosomes define biological sex: xx = female, and xy = male. However, it's not quite that straightforward ...

Forbes contributors publish independent expert analyses and insights. Pam Danziger reports on retail, focused on the luxury consumer market. An overwhelming 82% of consumers say they shop with their ...

The women's activist sportswear brand XX-XY Athletics celebrated its one-year anniversary this month. It proved to be a lucrative business by marketing the protection of women and girls from ...

XX/XY opens with just the kind of primal sexual scene its title suggests. On a New York subway, a man (Mark Ruffalo) and a woman (Maya Stange) spot each other, as the film freeze-frames over telling, ...

When Italian boxer Angela Carini reported that she had “never felt a punch like that” after conceding to Algeria’s Imane Khelif 46 seconds after their Olympic match began, social media exploded with ...

Earlier this year, the often overlooked issue of differences in sex development came to the fore after two women boxers were allowed to compete in the Olympics after previously failing a gender ...

XY pure gonadal dysgenesis has been found in three phenotypic females in three different sibships in the same family. The proposita, a maternal cousin and a maternal aunt are similarly affected. They ...