(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 19th century French author Guy de Maupassant in his ...

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 ...

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 ...

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 new study published in Sexual and Relationship Therapy provides evidence that a person’s tendency to engage in sexual fantasy influences what they prioritize in a romantic kiss. The findings suggest ...

Kissing is a mystery. Science doesn't entirely understand why people do it. Theories abound, but the puzzle remains largely unsolved. Only two other species kiss, chimpanzees and bonobos. But only the ...

New research into Ancient Mesopotamia suggests people kissed romantically 4,500 years ago. The finding would mean humans began kissing 1,000 years earlier than previously thought. The article ...