Young women today do not marry the men they met in high school, or even the one they go out with at college, because they do not need to.

We're apt to fall in love with those who are mysterious and challenging to us.

There's biology in everything, even when you're feeling spiritual.

Hair that gleams can send a clear sign that you're young and in your prime, whatever your actual age.

Kissing is not just kissing. It is a major escalation or de-escalation point in a powerful process of mate choice.

Men are so visual, they see a woman who appeals to them physically, and it will trigger the romantic love system faster.

As women in industrial societies join the paid workforce, they gain the economic means to depart unhappy marriages more easily.