Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
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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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Speed dating was invented by a Rabbi in 1999.
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Brain scans show that people who view photos of a beloved experience an activation of the caudate - the part of the brain involving cravings.
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8 out of 10 people think that the first kiss indicates how the rest of the relationship will be.
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Sea otters hold hands while sleeping so they don’t drift away from each other.
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Wearing red increases attraction.
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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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