Think about the Israeli people. Have bomb shelters in every block/neighborhood and sirens that routinely go off 24/7/365...these people crawl out of bed, or drop whatever they are doing, and hurry to seek shelter from incoming rockets and missiles that are launched at them year round from terrorists and belligerents in all 4 cardinal directions....to keep from being hurt or killed in their own homes, workplaces, churches etc. Many have lived this way for their entire lives and function normally...they go to school and work, grow up, get married and have children.
Not to mention the horrific attacks that came from Gaza, that will surely never be far from their minds. Seeing those images of women and children being abused, murdered, and kidnapped in broad daylight on their city streets and being unable to stop it. Wow. Yet life goes on for them. Men and women, young and old .
Compare that to people we have today that think they have PTSD because somebody said something they didnt want to hear, or yelled at them. Totally different people, in vastly different worlds.