Erotomania is a type of delusion in which the person believes another person is in love with him/her.
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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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Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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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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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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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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Ten seconds of hugging a day increases levels of oxytocin, which can reduce blood pressure, thus cutting the risk of heart disease.
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