As a rule, 66 percent of people keep their eyes closed while kissing. The rest take pleasure in watching the emotions run the gamut on the faces of their partners.
687
Research has shown that allowing chocolate to melt in your mouth produced brain and heart rate activity that was simliar to - and even stronger than - that produced with passionate kissing.
173
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
Kissenger is a pig-shaped robotic device that lets you kiss someone over the internet.
5
In medieval Italy, if a man was caught kissing a woman in public, he had to marry her whether he liked it or not.
456
When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
Men who kiss their wives in the morning live five years longer than those who don't.
1k
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9