In the New England Journal of Medicine Army doctors are reporting that concussions - from roadside bombs in many cases - increase chances that a vet will suffer post-traumatic stress disorder. At the same time, they write, psychological stress remains the primary reason for the disorder. The article’s primary point appears to be that PTSD treatment may suffice and be more effective for most vets than to try to zero in specifically on, and isolate, post-concussion effects.

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