When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
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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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Studies show that the risk of a “secret love” being revealed heightens romantic feelings for the partners, thanks to increased levels of phenylethylamine (PEA).
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Men who kiss their wives in the morning live five years longer than those who don't.
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Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
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Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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In 1999, a fisherman found a love letter in a bottle from a soldier in WWI. He returned said letter to the now deceased widows 86 year old daughter.
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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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