“…There is a well-established literature demonstrating the connection between shiftwork and disruption to sleep, circadian rhythms, performance, mood, social and family life, as well as increased safety risk (Åkerstedt et al, 2010a, 2010bCosta, 1996;Costa & Di Milia, 2010;Driesen et al, 2010;Hobbs et al, 2010;Lombardi et al, 2012;Ohayon et al, 2010;Rajaratnam & Arendt, 2001;Wirtz & Nachreiner, 2010). An increasing body of research is providing evidence for links between shiftwork and numerous serious health issues, including cardiovascular disease (Åkerstedt & Knutsson, 1997;Lowden et al, 2010); indigestion and gastrointestinal ulcers (Lowden et al, 2010); obesity, metabolic syndrome, and glucose intolerance (Chen et al, 2010;Lowden et al, 2010;Padilha et al, 2010;Tanaka et al, 2010); reproductive health problems (Nurminen, 1989(Nurminen, , 1998; and breast and other cancers (Davis & Mirick, 2006;Davis et al, 2001;Hansen, 2006Hansen, , 2010Schernhammer et al, 2001).…”