"This was a small study that examined the association between brain structure and the diagnosis of internet addiction disorder. The results of the study should be interpreted cautiously, as the small number of participants increases the likelihood that the findings were due to chance. Additionally, the study cannot tell us anything about whether obsessive internet use causes changes to the brain, as some headlines have suggested. From this study we cannot rule out the possibility that the participants’ brains were structured this way before their heavy internet usage. If this were the case it would raise the possibility that their brain structure was responsible for their actions rather than their actions altering their brain structure. Of course, there is also the question of whether the participants’ behaviour actually constitutes a medical condition."