Two in five people in the world marry their first love.
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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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Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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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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Parents receive 1 out of every 5 Valentines.
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There's a love mattress that is specifically designed for couples who sleep on each other's arms.
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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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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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