Seligman claims that people less psychologically healthy than normal are disproportionately likely to develop PTSD, but the training program he launched doesn’t seem to have done well. But everyone agrees that not being abused as a child is a protective factor against PTSD. (This is all newspaper-level sources, but that should give you enough clues to find the paper-level sources if you want to dig deeper.)
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Seligman claims that people less psychologically healthy than normal are disproportionately likely to develop PTSD, but the training program he launched doesn’t seem to have done well. But everyone agrees that not being abused as a child is a protective factor against PTSD. (This is all newspaper-level sources, but that should give you enough clues to find the paper-level sources if you want to dig deeper.)