From the vault: Let’s talk about sex

It’s no surprise that some stories about sex have been popular in Cosmos’ vault. This week we take a peek at some of the most arousing articles.

Sexual chemistry 101

Looking for love? Use the power of science to give you the edge in the dating game, with the top 10 lab-tested tips for finding the perfect mate. Read more

Penis size does matter to women

The eternal question of whether penis size matters to women has been probed by a team of international scientists who reported that yes, women do find larger men more attractive. Read more

Frequent ejaculation improves sperm quality

Men who want to become fathers should have sex or ejaculate daily in order to maximise sperm quality, scientists report. Read more