“…High-risk populations such as war-affected people, refugees, firefighters, or police officers often experience traumatization sequentially (Harvey et al, 2015; Levy-Gigi, Richter-Levin, Okon-Singer, Keri, & Bonanno, 2015), which has a significant impact on the development of mental disorders, for example, PTSD, depression, and anxiety (Kartal & Kiropoulos, 2016; Pinto, Henriques, Jongenelen, Carvalho, & Maia, 2015; Stanley, Hom, & Joiner, 2016). Several studies have provided evidence that individuals suffering from PTSD in the aftermath of an initial trauma are vulnerable to increased PTSD symptoms after subsequently experiencing a new traumatic event (Bramsen, Van Der Ploeg, & Boers, 2006; Fossion et al, 2015; Hantman & Solomon, 2007; Kinzie, Boehnlein, Riley, & Sparr, 2002).…”