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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Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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The average person will go on a date at least 100 times before they finally marry.
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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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The typical person spends about 600 hours having sex between the ages of 20 and 70.
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In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
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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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Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
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