In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
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The average person in their lifetime will spend an estimated 20,160 minutes kissing!
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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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40% of people who are rejected in romantic love slip into clinical depression.
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Sea otters hold hands while sleeping so they don’t drift away from each other.
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Historically, sweat has been an active ingredient in perfume and love potions.
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Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
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Kissing an infection-free partner is good for your teeth!
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