Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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Parents receive 1 out of every 5 Valentines.
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The average person will go on a date at least 100 times before they finally marry.
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According to the New York Times, a study conducted during the 1980's found that men who kiss their wives before leaving for work live longer, get into fewer car accidents, and have a higher income than married men who don't.
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The typical person spends about 600 hours having sex between the ages of 20 and 70.
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Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
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When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to 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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