Thus, to further represent the protracted nature of GWI (i.e., 30 years since the initiating event), mice were aged for a total of 11 weeks with either H2O or repeated exposure to 4-day bouts of CORT every other week to reflect ongoing stress, with the potential to be representative of PTSD, following the initial exposure to CORT and DFP as utilized in previous studies (Figure 2A) [50,51,52,53,54,55,56,57,58,59,60,61]. Here, CORT is linked to post-traumatic stress disorder.