In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
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As a rule, 66 percent of people keep their eyes closed while kissing. The rest take pleasure in watching the emotions run the gamut on the faces of their partners.
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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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In Korea, there's a man named Lee Jin-gyu who fell in love and married his life-sized Japanese body pillow (called a "dakimakura").
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40% of people who are rejected in romantic love slip into clinical depression.
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If you mouth the word "colorful" to someone, it looks like you are saying "I love you".
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The typical person spends about 600 hours having sex between the ages of 20 and 70.
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Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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