Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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In 1999, a fisherman found a love letter in a bottle from a soldier in WWI. He returned said letter to the now deceased widows 86 year old daughter.
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When dragonflies mate, their tails form a love heart.
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Studies show that the risk of a “secret love” being revealed heightens romantic feelings for the partners, thanks to increased levels of phenylethylamine (PEA).
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A man's beard grows fastest when he anticipates sex.
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People are more likely to tilt their heads to the right when kissing instead of the left (65 percent of people go to the right!)
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The average person will go on a date at least 100 times before they finally marry.
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