You burn 26 calories in a one minute kiss.
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In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
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The single biggest predictor of love is proximity.
30
A man's beard grows fastest when he anticipates sex.
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When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
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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
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
According to the New York Times, a study conducted during the 1980's found that men who kiss their wives before leaving for work live longer, get into fewer car accidents, and have a higher income than married men who don't.
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