When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
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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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Close to 110 million roses (mostly red) will be purchased and delivered around Valentine's Day in the U.S.
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The typical person spends about 600 hours having sex between the ages of 20 and 70.
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Parents receive 1 out of every 5 Valentines.
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In 2010, Gary Richmond was beaten into a coma. He woke up with amnesia and no memory of his wife of 20 years. Subsequently, he ended up falling in love with her all over again!
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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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