Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
39
Men who kiss their wives in the morning live five years longer than those who don't.
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One in five long-term love relationships began with one or both partners being involved with others.
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Wearing red increases attraction.
30
In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
4
A couple had their wedding rings engraved with a waveform of their own voices saying "I do."
10
Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14
Close to 110 million roses (mostly red) will be purchased and delivered around Valentine's Day in the U.S.
88