In Korea, there's a man named Lee Jin-gyu who fell in love and married his life-sized Japanese body pillow (called a "dakimakura").
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When dragonflies mate, their tails form a love heart.
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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 you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
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In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
4
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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