Close to 110 million roses (mostly red) will be purchased and delivered around Valentine's Day in the U.S.
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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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When someone looks at a new love, the neural circuits that are usually associated with social judgment are suppressed.
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The single biggest predictor of love is proximity.
30
In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
4
As a rule, 66 percent of people keep their eyes closed while kissing. The rest take pleasure in watching the emotions run the gamut on the faces of their partners.
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When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
44