'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
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
40% of people who are rejected in romantic love slip into clinical depression.
72
One in five long-term love relationships began with one or both partners being involved with others.
177
Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104
A man's beard grows fastest when he anticipates sex.
239
Speed dating was invented by a Rabbi in 1999.
45
Two in five people in the world marry their first love.
270