I think that property is very important in this day and age. It defines you; you worked hard to get it. It's meaningful to you, and when you divorce, a lot of people have a lot of battles over their property for good reasons.

When you fight, anger drives up testosterone in both men and women.

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

Most of us make up our minds in the first three minutes of meeting someone whether there's a potential for a relationship.

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.

You know, when you've been dumped, the one thing you love to do is just forget about this human being, and then go on with your life - but no, you just love them harder.

Nobody gets out of love alive. You turn into a menace or a pest when you've been rejected.