Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14
In Korea, there's a man named Lee Jin-gyu who fell in love and married his life-sized Japanese body pillow (called a "dakimakura").
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You burn 26 calories in a one minute kiss.
605
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
In 2010, Gary Richmond was beaten into a coma. He woke up with amnesia and no memory of his wife of 20 years. Subsequently, he ended up falling in love with her all over again!
44
Gary Kremen, founder of match.com, lost his girlfriend to a man she met on match.com.
69
Speed dating was invented by a Rabbi in 1999.
45
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