Close to 110 million roses (mostly red) will be purchased and delivered around Valentine's Day in the U.S.
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Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14
It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
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In medieval Italy, if a man was caught kissing a woman in public, he had to marry her whether he liked it or not.
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Historically, sweat has been an active ingredient in perfume and love potions.
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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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Speed dating was invented by a Rabbi in 1999.
45
When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
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