You burn 26 calories in a one minute kiss.
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In Korea, if you do not receive any gift on Valentine's day then all the singles go to Korean restaurants and eat black noodles to celebrate (or mourn) their single status.
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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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Ten seconds of hugging a day increases levels of oxytocin, which can reduce blood pressure, thus cutting the risk of heart disease.
26
Close to 110 million roses (mostly red) will be purchased and delivered around Valentine's Day in the U.S.
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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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A Korean man called Lee Jin-gyu fell in love with his large, huggable pillow and married it.
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