Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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Speed dating was invented by a Rabbi in 1999.
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Holding hands with someone you love can alleviate physical pain as well as stress and fear.
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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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The average person will go on a date at least 100 times before they finally marry.
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A couple had their wedding rings engraved with a waveform of their own voices saying "I do."
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Erotomania is a type of delusion in which the person believes another person is in love with him/her.
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