You burn 26 calories in a one minute kiss.
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One in five long-term love relationships began with one or both partners being involved with others.
177
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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A couple had their wedding rings engraved with a waveform of their own voices saying "I do."
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It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
165
Sea otters hold hands while sleeping so they don’t drift away from each other.
104
For Valentine's Day 2014, an unnamed man sabotaged a special screening of "Beijing Love Story" at a Shanghai cinema by booking every other seat, subsequently preventing couples from sitting together.
41