All over the world people love. They live for love, write for love, sing, eat, cook, die and kill for love (ForumNetwork, 2009). Since the beginning of time, people have wondered why love is such an intense and universal feeling. There is no culture on this planet that does not have love (ForumNetwork, 2009). This essay will only talk about romantic love where sexuality and attraction are involved. Romantic love is one of the most powerful energies on earth (ForumNetwork, 2009), it is in fact one of the most addictive substances we can experience at least once in our lives. The rush of cocaine and the rush of falling in love depend on the same chemicals present in our brain (ForumNetwork, 2009); we are literally addicted to love. The feeling of being in love does not depend on whether the other party loves you or not, it will definitely help you feel happier, but the intensity of the loved or heartbroken feeling is the same, both start from the same principle: love and the desire of the other. Love remains in the most basic system of our brain, in all cognitive processes, in all motor impulses; it is placed in our reward system, the oldest of all (ForumNetwork, 2009). To gather all the information we have in the science of love, many researchers in different fields have collaborated to get an idea of ​​what happens when love happens. One of the world's leading researchers in this field is the American anthropologist Helen Fisher, author of many best-selling books such as Why We Love, or Why Him, Why Her. He worked with many neuroscientists, psychologists, sociologists and doctors to carry out a large experiment in which the brains of participants who claimed to be in love or to feel… middle of paper… New Scientist , 36-38.Fisher, H. (2004). Why We Love (1st ed.). New York, USA: Henry Holt. Meyer, B. (11 February 2009). Science of romance: The brain has a love circuit. Retrieved October 4, 2011, from www.cleveland.com: http://www.cleveland.com/nation/index.ssf/2009/02/science_of_romance_brains_have.htmlMiller, T. (December 29, 2009). Factoidz.com. Retrieved October 3, 2011, of The Chemistry Behind a Fool-in-Love.: http://factoidz.com/why-love-makes-us-act-so-irrational-the-chemistry-behind-a-fool-in -love. /inforefuge.com. (n.d.). Retrieved October 5, 2011, from The Science of Smell: http://www.inforefuge.com/science-of-smell-conclusionRooks, P. (2009). the science of love. Skeptical, 15, 73-75.DiscoveryNetworks. (February 13, 2009). Science of Sex Appeal.ForumNetwork. (September 21, 2009). Elena Fisher. This is your brain on love .