Jonathan Shay makes two important statements. PTSD is caused by seeing yourself on the verge of death,(adrenaline/cortisol) and betrayal of whats right by a legitimate athority (our government.)
The sooner all mental disorders are treated the better the outcome. Post traumatic stress can be lowered by at least 50%, if combat soldiers that experience traumatic events gather together relive there experiences as soon as possible. Together the guilt related thoughts that cause serious PTSD symptoms can be resolved, especially with the help of a trained mental health provider. Combat veterans universally agree, unless you have been there done that you cannot possibly understand. This is the best prevention treatment for PTSD. Government officials know this but will not comply.
This proven science needs to be used universally, if we want people to think with a brain that functions with all of it's parts. Oxygen treatments are vital to restore the damage caused by excessive cortisol, traumatic brain damage and more. Goggle Dr. Paul Harch.