Helen Fisher is biological anthropologist. She has conducted extensive research and written six books on the evolution and future of human sex, love, marriage, gender differences in the brain and how your personality shapes who you are and who you love. In the ted talk video, The Brain in Love, talks about romantic love. Anthropologist, Helen Fisher, was sharing a research she had with college students, and one of the questions was have you ever been rejected by someone you love. The majority of everyone said "Yes." She goes on and explains how romantic love is one of the most powerful sensations of all. Romantic love is like an obsession especially when rejected because you tend to crave the person more, and you can't stop thinking about that loved one. Helen did a study in the brain region and found some logic to this. One of the ones she talked about was deep attachment. In the part of the brain once you have encountered that person it becomes difficult to erase them. You have so many memories with them that it becomes impossible, because any little thing triggers memories. Something else she explained is that calculating part of your brain, you keep thinking about the past and what went wrong, to try and make it better. She emphasized a lot on the term "Romantic Love," that drive for someone. Romantic love can be both positive and negative. In some cases it becomes and addiction and you become to crave, distort reality, take risk, and obsessively think about one person. One person who can relate is Gatsby. Gatsby had this urge to have Daisy, which was his past lover. In the story it explains how Gatsby became deeply attached and did everything in his will to impress Daisy. One lives for love and dies for love in other words one would do anything for love. Gatsby was one who changed his identity, status in society, and life story just to win the girl from his past. Helen Fisher's study relates in every factor to Gatsby, Romantic love is something everyone wants, one would think its the American Dream. To Gatsby his unforgettable love is his romantic love in which he does anything to gain back. Like William Faulkner once said," The past is not dead. It's not even the past," to Gatsby Daisy is love and that is who he desires and the moment he realizes he can't have her is when his addiction for romantic love occurs.