“…Nachreiner (2013, 2014) have analyzed representative data from a European-wide survey and found that even a small amount of work contact during leisure time raises the odds for the occurrence of multiple physical and psychological health impairments. Availability expectations, actual work contact, and work-related smartphone use in leisure time seem to be related to problems with detaching from work Derks, Brummelhuis, et al, 2014;Derks, van Mierlo, et al, 2014;Dettmers et al, 2016;Mellner, 2016), sleep problems (Arlinghaus & Nachreiner, 2014;Bowen et al, 2018), emotional exhaustion (Dettmers et al, 2016;Dettmers, 2017;Piszczek, 2017;Xie et al, 2018), stress (Arlinghaus & Nachreiner, 2014;Voydanoff, 2005) and "work-family conflict" (WFC; Bowen et al, 2018;Derks et al, 2016;Dettmers, 2017;Voydanoff, 2005).…”