For example the brains limbic system may flood the body with waves of stress hormones like cortisol every time images of the traumatic event bubble up uninvited into consciousness.

例如，每当创伤事件的图像不请自来地进入意识时，大脑边缘系统可能会用皮质醇等压力荷尔蒙的浪潮淹没身体。