'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
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
It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
165
One in five long-term love relationships began with one or both partners being involved with others.
177
Historically, sweat has been an active ingredient in perfume and love potions.
309
Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14
Twenty nine percent of women spend more time shopping for shoes than they do looking for a life long mate.
737
The left ear is more responsive to words of love and emotion whispered into it than the right.
44