You burn 26 calories in a one minute kiss.
Kissing an infection-free partner is good for your teeth!
People are more likely to tilt their heads to the right when kissing instead of the left (65 percent of people go to the right!)
In medieval Italy, if a man was caught kissing a woman in public, he had to marry her whether he liked it or not.
'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.
The average person in their lifetime will spend an estimated 20,160 minutes kissing!
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.