Kissing an infection-free partner is good for your teeth!
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It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
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Gary Kremen, founder of match.com, lost his girlfriend to a man she met on match.com.
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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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In Korea, if you do not receive any gift on Valentine's day then all the singles go to Korean restaurants and eat black noodles to celebrate (or mourn) their single status.
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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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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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