Sex

Male contraceptive gels, “night-before” pills that disrupt ovulation, and the brave future of human contraception.

This biotech CEO wants to slow women’s aging by extending ovulation.

Cells we were taught to ignore have been caught on tape doing the unthinkable.

A conversation with Angela Chen, author of “Ace: What Asexuality Reveals About Desire, Society, and the Meaning of Sex.”

Pheromones are often used to explain why you’re attracted to someone unexpected, or how you tolerate your partner’s very particular post-run funk, but abhor anyone…

What would a sex toy that anticipates your every whim be like?

Nicole Prause left academia to study sexuality without institutional limits. Now she’s challenging orthodox views of climax and pornography.

When artificial sperm and eggs become a reality, the sex of your babymaking partner won't matter.

Researching orgasms gives this reviewer some perspective on the new comedy by Whitney Cummings.

Scientists and entrepreneurs tell us what they’re looking for.