8 out of 10 people think that the first kiss indicates how the rest of the relationship will be.
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40% of people who are rejected in romantic love slip into clinical depression.
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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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In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
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When dragonflies mate, their tails form a love heart.
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It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
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In 2012, a Chinese man named Xiao Fan had a dress made out of 9,999 red roses for his girlfriend and then proposed - 9 in China means forever
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