I'd say it absolutely does. PTSD is primarily caused in people that had a traumatic experience. Trauma in one's childhood from abusive or neglectful situations

I'd say it absolutely does. PTSD is primarily caused in people that had a traumatic experience. Trauma in one's childhood from abusive or neglectful situations is probably more common than soldiers. The point there isn't to "chemically forgive", its to help people realize they weren't at fault in the first place. Still, if you think the point or goal of the topic here is "chemical forgiveness" then you're way off base in the first place - someone can be so horrified they can't even internalize the shame of what they did. The point isn't to feel good about doing bad things.