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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The left ear is more responsive to words of love and emotion whispered into it than the right.
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One in five long-term love relationships began with one or both partners being involved with others.
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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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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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It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
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In Korea, if you do not receive any gift on Valentine's day then all the singles go to Korean restaurants and eat black noodles to celebrate (or mourn) their single status.
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In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
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