“…In general, researchers have supposed that the more time people spend on their emails, the higher the degree to which people feel overloaded (Barley et al, 2011). In addition, researchers have investigated email-based interruptions through incoming messages, the resulting impact on time spent on emails, and the optimal timing for reading emails (Gupta, Li, & Sharda, 2013;Gupta, Sharda, & Greve, 2011;Renaud, Ramsay, & Hair, 2006;Vidgen, Sims, & Powell, 2011).…”