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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It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
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Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
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You burn 26 calories in a one minute kiss.
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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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Speed dating was invented by a Rabbi in 1999.
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For Valentine's Day 2014, an unnamed man sabotaged a special screening of "Beijing Love Story" at a Shanghai cinema by booking every other seat, subsequently preventing couples from sitting together.
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