Kissing is something of a mystery, being "only documented in 46 percent of human cultures," noted psychologist Catherine ...

The result was striking. Kissing almost certainly existed in the ancestor of today’s large apes, which lived somewhere ...

As a psychologist, much of my work has focused on empathy and understanding the emotions of others. In the realm of human emotions, there exists an intriguing and lesser-known phenomenon known as ...

In romantic relationships, a kiss is often seen as the gateway to intimacy. It's a sensual gesture that can ignite sparks, communicate affection, and deepen the connection between two people. Of the ...

Kiss Day, celebrated on February 13 each year, is the perfect occasion for lovers to express their affection through one of the most intimate and timeless gestures— a kiss. As part of the Valentine's ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Humans are born with instincts for crying and smiling, but not for ...

A Babylonian clay model dated to 1800 B.C.E. shows a nude couple on a couch engaged in sex and kissing. The Trustees of the British Museum “My upper lip becomes moist, while my lower lip trembles! I ...