'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.
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Speed dating was invented by a Rabbi in 1999.
45
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
If you mouth the word "colorful" to someone, it looks like you are saying "I love you".
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When someone looks at a new love, the neural circuits that are usually associated with social judgment are suppressed.
130
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104