Romantic love exists in whole world.it is rooted in intimate experiences in childhood. Besides, the inherent skills lead us to choose a mate. According to some theories, love might be caused by chemicals in the body and it is different from cultural expression.Through this article, I know that romance is not only mental but chemical. beyond my expectations, people choose a mate may follow their noses, increasing the opportunity that later generation will has stronger gene. Finally, I realize keeping a frequent physical contact can maintain love tightly.
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