What a doctoral student in economics has discovered about sex and teenagers.

Johnny Weir, that rare eccentric celebrity who's actually interesting when he opens his mouth, discusses gender, being gay or not gay, and porn (not gonna do it).

How big is your truck? Ignoring gender can sink a campaign.

The Y chromosome is smarter, younger, and more dynamic than the X.

It's what they think, not what they do.

The raunch culture that’s inundating our boys from babyhood.

Do women have an innate evolutionary preference for tall men?

A Q&A with writer Danzy Senna.