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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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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It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
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Wearing red increases attraction.
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A man's beard grows fastest when he anticipates sex.
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40% of people who are rejected in romantic love slip into clinical depression.
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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.
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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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