I think romantic love evolved to enable you to focus your mating energy on just one individual at a time, thereby conserving mating time and energy.

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

For so many generations, a woman's only career path was to marry well and to marry up. Those days have changed.

From my studies of genetics and neuroscience I have come to believe that people fall into four broad personality types - each influenced by a different brain chemical: I call them the Explorer, Builder, Director, and Negotiator.

There's a lot of talk about the positive aspects of love. We as a society downplay the danger, the anxiety, and the disappointment. We romanticize romance.

Romantic love is one of the most addictive substances on Earth.

Despite the myth that men are less committed, they are predisposed to desire marriage.