In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
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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.
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Men fall in love faster than women do.
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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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Historically, sweat has been an active ingredient in perfume and love potions.
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For Valentine's Day 2014, an unnamed man sabotaged a special screening of "Beijing Love Story" at a Shanghai cinema by booking every other seat, subsequently preventing couples from sitting together.
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There's a love mattress that is specifically designed for couples who sleep on each other's arms.
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