Long term marijuana use has been linked to the way the brain processes reward and can lead to dependence, according to new research. By using an MRI to look at the brains of 53 daily pot users and compare them to 68 people who do not smoke at all or smoke recreationally after showing them images of bongs, joints, weed plants etc. scientists found that the area of the brain that processes rewards “lit up.” According to new research this change could impact people’s’ ability to make decisions and maintain relationships as their perspective on risks and rewards is altered. Nik Zecevic and Mark Sovel take a closer look at the study on the Lip News.