You've got to remember that men are men and women are women. And although a lot of similarities, there are some real differences.

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.

You've got to remember that men are men and women are women. And although a lot of similarities, there are some real differences.

Jealousy can even be good for love. One partner may feel secretly flattered when the other is mildly jealous. And catching someone flirting with your beloved can spark the kind of lust and romance that reignites a relationship.

Women spend their lives trying to look good for men. So a woman who feels she's sending the right visual signals is pleased with herself.

As a group, anthropologists are not too fond of people who work in the business world.

You fall in love with somebody who fits within what I call your 'love map,' an unconscious list of traits that you build in childhood as you grow up. And I also think that you gravitate to certain people, actually, with somewhat complementary brain systems.