Humans pucker up for all kinds of reasons. We kiss for love, for luck, to say hello and goodbye. There’s also the whole ‘it feels so good’ thing. And when you stop and really think about the act of ...

Lip kissing is an act that’s so natural and common in many present-day societies it is easily taken for granted. But it’s not actually clear whether people have always been kissing, or whether its ...

Babylonian clay model showing a nude couple on a couch engaged in sex and kissing from 1800 BC.Trustees of the British Museum/University of Copenhagen New research into Ancient Mesopotamia suggests ...

(CNN) — “The meeting of lips is the most perfect, the most divine sensation given to human beings, the supreme limit of happiness.” So wrote the 19 th century French author Guy de Maupassant in his ...

Breakthroughs, discoveries, and DIY tips sent six days a week. 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 ...

Kissing feels instinctive and intimate, yet scientists now argue it is a surprisingly recent and uneven addition to human behavior. Instead of a single romantic origin story, the evidence points to a ...

Science has taught us a lot about a smooch. Researchers have discovered kissing helps you choose the right mate and helps you live longer. They have found you use 146 muscles when you pucker up and ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. “The meeting of ...