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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Two in five people in the world marry their first love.
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Close to 110 million roses (mostly red) will be purchased and delivered around Valentine's Day in the U.S.
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8 out of 10 people think that the first kiss indicates how the rest of the relationship will be.
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Historically, sweat has been an active ingredient in perfume and love potions.
309
Gary Kremen, founder of match.com, lost his girlfriend to a man she met on match.com.
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Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
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