Kissing an infection-free partner is good for your teeth!
141
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
You burn 26 calories in a one minute kiss.
605
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
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
'X' became symbolic for a kiss because in the middle ages when alot of people were illiterate and they used to sign documents with an X and then kiss it for sincerity.
255
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