On top of that, he can survive torture without suffering from post-traumatic stress symptoms.
PTSS almost seems like a culture-bound syndrome of the modern West. In particular there don't seem to be any references to it before WWI and even there (and in subsequent wars) all the references seem to be from the western allies. Furthermore, the reaction to "shell shock", as it was then called, during WWI suggests that this was something new that the established structures didn't know how to deal with.
Not everyone who's had traumatic experiences has PTSD.
...The scientists have a theory, and it has to do with the root causes of PTSD, previously undocumented. As compared with the resilient Danish soldiers, all those who developed PTSD were much more likely to have suffered emotional problems and traumatic events prior to deployment. In fact, the onset of PTSD was not predicted by traumatic war experiences but rather by childhood experiences of violence, especially punishment severe enough to cause bruises, cuts, burns and broken bones. PTSD
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