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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A man's beard grows fastest when he anticipates sex.
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The single biggest predictor of love is proximity.
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Sea otters hold hands while sleeping so they don’t drift away from each other.
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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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Ten seconds of hugging a day increases levels of oxytocin, which can reduce blood pressure, thus cutting the risk of heart disease.
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In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
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A poll has found that computer 'nerds' make the best lovers, with 82 percent of IT geeks claiming they put their partner's pleasure above their own.
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