Women, we care a great deal about being thin and good looking, whereas men mostly care about sex - ideally with women who are thinner and better looking than they are.

Women, we care a great deal about being thin and good looking, whereas men mostly care about sex - ideally with women who are thinner and better looking than they are.

What do women do when they get together? We sit around and talk! Men, not so much. My theory is that this difference is genetic and dates back to the hunter-gatherer societies, when the men had to be quiet as they hunted, lest they scare away the bison and then everyone starved to death and it was all their fault.

Women tell stories; men want answers. Guys get impatient when we drone on forever; we get frustrated when they tune out.

One study found that people who smile in childhood photographs are less likely to get a divorce.

As relationships progress, the time you spend smooching diminishes. Where kissing was once an enjoyable entree unto itself, it becomes a mere appetizer couples hasten through on the way to the main course.

Divorce is contagious. That's right - when you have a close couple friend split up, it increases your chances of getting a divorce by 75 percent.