“…More specifically, for example, reduction of interpersonal conflicts at home and at work that belong to the six main characteristics of addictive Facebook use can mainly be noticed after the clinical stay. Third, despite the positive link between duration of Facebook use and addictive Facebook use, there can be further variables that impact the level of addictive Facebook use, such as the inpatients' level of flow (see Csikszentmihalyi, 1990) experienced during the Facebook use, which was previously described to be a significant antecedent of problematic Facebook use in healthy individuals (Brailovskaia, Rohmann, Bierhoff, & Margraf, 2018). Moreover, considering that the sample consists of inpatients, it may also be that their general symptoms as well as their comorbidities affect the results.…”