Historically, sweat has been an active ingredient in perfume and love potions.
309
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
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!)
278
Couples' personalities converge over time to make partners more and more similar.
235
The average person will go on a date at least 100 times before they finally marry.
33
Brain scans show that people who view photos of a beloved experience an activation of the caudate - the part of the brain involving cravings.
103
In Korea, if you do not receive any gift on Valentine's day then all the singles go to Korean restaurants and eat black noodles to celebrate (or mourn) their single status.
28
'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