In a predatory world, sleep doesn’t make much evolutionary sense. Why would any creature lie down, shut its eyes and not move for about a third of a day? It’s like an invitation to be eaten.
Men with deeper voices have an advantage in attracting women, but mostly if they’re looking for a fling, new research suggests.
What is the point, really, of kissing? Humans make such a big deal of it, but almost no other animals smooch.
When it comes to family jewels, bigger is not always better
Women like it when their husbands are successful. Men, maybe not so much, says a new study.
Two new studies analyze the origin of monogamy and come up with very different answers
A study takes a closer look at why absence makes the heart grow fonder
It turns out that it does matter what time of year you’re born — at least when it comes to your health.
Yesterday, I asked Facebook to take down a fraudulent page. Within a few hours it was gone, just a shadowy image of a bandaged thumb where it used to be. Very effective. It’s highly likely I get better treatment from Facebook …
A new study suggests men and women are getting closer to 50-50 at home. But is it measuring the right thing?
Town & Country sets gender relations back a few decades with its February list of marriageable males.
The brain chemistry and psychology behind falling in love with an online fiction.