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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Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
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In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
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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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A couple had their wedding rings engraved with a waveform of their own voices saying "I do."
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People are more likely to tilt their heads to the right when kissing instead of the left (65 percent of people go to the right!)
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Erotomania is a type of delusion in which the person believes another person is in love with him/her.
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Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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