Like most animals, we're wired to associate height with power.

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

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

Your sweetheart calls you by another's name. His eyes linger too long on your best friend. He talks with excitement about a girl at work. And the fire catches. Jealousy - that sickening combination of possessiveness, suspicion, rage, and humiliation - can overtake your mind and threaten your very core as you contemplate your rival.

I've always maintained that men were more romantic than women.

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.

The human brain is built to compare; it's Darwinian to consider an alternative when one presents itself.