In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
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A man's beard grows fastest when he anticipates sex.
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'X' became symbolic for a kiss because in the middle ages when alot of people were illiterate and they used to sign documents with an X and then kiss it for sincerity.
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A couple had their wedding rings engraved with a waveform of their own voices saying "I do."
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Sea otters hold hands while sleeping so they don’t drift away from each other.
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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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Brain scans show that people who view photos of a beloved experience an activation of the caudate - the part of the brain involving cravings.
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In medieval Italy, if a man was caught kissing a woman in public, he had to marry her whether he liked it or not.
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