Okay, so one of my anomalies is that I am interested in TV war shows, war movies and books about the history of war, or, as in The Red Badge of Courage about the character development than can occur in any catastrophic situation. For someone who does not think killing is an option to solving problems, this is a major contradiction. But not really because catastrophe does sometime develop character. War depicts the worst of mankind, but also, sometimes, the best.
I have found a Saturday night lineup, on a TV channel called Heroes and Icons, of TV shows from World War II, and Vietnam. One of my favorites is Combat!, and I cannot say why, except that we watched this TV show as a family when I was a child, and it evokes memories of being in the living room with my family, enjoying the family time. Good memories.
Some of the episodes of Combat touch on the issue of Post Traumatic Stress Disorder, although that was not an official psychiatric diagnosis until the 1980s. The article noted indicates that mankind has no doubt suffered from PTSD from since the beginning of time... It has been known or at least referred to by many other terms, including, but not inclusive, shell shock, hysteria, traumatic neurosis, nervous breakdown, battle fatigue. Infamously, among other things, General Patton, in World War II, is know for two incidents of slapping soldiers, who were suffering from PTSD, but he accused them of malingering.
Literature, drama, movies and TV have long addressed PTSD. A movie that comes to mind is Captain Newman, MD, based on a book by the same name, written by Leo Rosten. The Wikipedia article referenced above (PTSD) even refers to a reference in the Bible.
The point being, that what has been known anecdotally for perhaps thousands of years, has become codified by science and medicine. Personally, I think there is much in folklore and indigenous history, including oral history and pictorial history that science can learn from. And, our authors, storytellers, and native "medicine men, shaman, seers, conjurers" and others who demonstrate a keen awareness of human nature, have much to offer science about human nature, and human history. I just think we have to keep an open mind to all the possibilities.