Elaine Hatfied and Richard Rapson emphasize that there are two main types of love: passionate and companionate. Passionate love is described as being a romantic and powerfully overwhelming longing for ones partner. Many people who've experienced passionate love know how hard it is to get over a long-term relationship. Evidence has proven such that dealing with romantic rejection is similar to kicking an addiction. One study that was conducted consisted of heartbroken men and women viewing pictures of their previous partner. Results showed that regions in the brain that were activated while looking at the pictures associated with rewards, addiction cravings, control of emotions, feelings of attachment and physical pain and distress. These findings could be correlated to why people find it hard to move on from the break up and in some instances people are propelled to act upon extreme behaviors, such as stalking and homicide, after losing love. The next study was similar to the previous one except it asked participants to think about events that had occurred with their partner while looking at photos of them. Following that the participants proceed to complete a math problem to suppress romantic feelings. Then they were presented with a familiar neutral stimulus, such as a picture of a classmate. Results showed that regions in the brain called the nucleus accumbens and the prefrontal cortex were activated during the study. These regions are correlated with intense cocaine and cigarette addiction. There was also show of increased activity in the brain's insular cortex and the anterior cingulated, regions associated with physical pain and distress. Even though there is no concrete causation from the studies, it still can be used to decipher why the end of a romantic bond can seem like enslavement to your partner. Although it seems as if it will never end, time is the only treatment. The more time that passes after the break up the less activity requested from regions in the brain associated to attachment.