Women are very attracted to a low voice because it's linked to testosterone, which for millions of years was a sign that men had very good spacial skills and would have been very good at hunting and finding their way back home.

Research shows that couples who have a lot of similarities, including intellectual compatibility, end up staying together.

Scientists know that women gravitate to men who have a different immune system from theirs.

Experiences shape the brain, but the brain shapes the way we view experiences, too.

A lot of people have been romantically in love with somebody who they feel wasn't appropriate to marry.

A Rolex watch or an expensive car are the things guys often use to show status, wealth, and basic desirability.

Romantic love is not an emotion. ... It's a drive. It comes from the motor of the mind, the wanting part of the mind, the craving part of the mind.