Ingrid Bergman is said to have uttered one of the most notable definitions of the act of touching lips: “A kiss is a lovely trick designed by nature to stop speech when words become superfluous.” Some ...

In the Western world, Valentine’s Day expressions of affection are closely linked to mouth-to-mouth kisses. I remember feeling envious years ago when a colleague found a card in his pigeon-hole ...

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 ...

Out of all the holiday traditions, the New Year’s kiss might be the most fun—or fraught, depending who you ask. If you’re coupled, you probably haven’t given it much thought. But if you’re single, the ...

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 ...

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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 ...

Researchers have delved into the ancient past to discover when romantic kissing likely originated and the pathogens, such as the herpes simplex virus, that have followed the practice from then until ...