When you fight, anger drives up testosterone in both men and women.
Today, American women bear an average of 2.2 children that live to adulthood. Across most of Europe, women bear even fewer young.
Women have a better sense of color and a better color memory. They're more likely to notice when something doesn't match; more likely to notice what you're wearing.
The women's movement is just a symptom of basic changes in the economy that are favoring women.
Men fall in love faster than, and just as often as, women.
A woman will toss her head and a man will say, 'Oh she's trying to pick me up,' when in fact she's not doing that at all. So, women actually have to be a little careful with what they do, because men will pick up things that they didn't mean.
Once you fall for someone, their smell can be a powerful thing. Women will wear their boyfriends' T-shirts, and throughout tales in history men have held on to their lover's handkerchief.