Today, American women bear an average of 2.2 children that live to adulthood. Across most of Europe, women bear even fewer young.

The only people you and I are likely to know in common are people in the news - politicians, journalists and celebrities.

Barriers tend to intensify romance. It's called the 'Romeo and Juliet effect.' I call it 'frustration attraction.'

Office romances are few, short, and not usually destructive.

There is more and more data indicating that there is a biological basis to your political views.

You don't come home from the office to spend time with another job. Hopefully you come home to someone you can have a good time with.

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