PTSd is an anxiety and mood "disorder" (although I like to think of PTS as less of a "disorder" and more as something that happens when warriors face horrible experiences and
traumas associated with their livelihood). Regardless, even though these two compelling books mentioned that exercise is important for managing the stresses that come from post traumatic living, and even though I didn't doubt them, I found some scientific proof. Here it is:
“Exercise can be a magic drug for many people with depression and anxiety disorders, and it should be more widely prescribed by mental health care providers, according to researchers who analyzed the results of numerous published studies. Exercise has been shown to have tremendous benefits for mental health,” says Jasper Smits, director of the Anxiety Research and Treatment Program at Southern Methodist University in Dallas.
“Individuals who exercise report fewer symptoms of anxiety and depression, and lower levels of stress and anger,” Smits says. “Exercise appears to affect, like and antidepressant, particular neurotransmitter systems in the brain, and it helps patients with depression re-establish positive behaviors. For patients with anxiety disorders, exercise reduces their fears of fear and related bodily sensations such as a racing heart and rapid breathing.”Source: http://blog.smu.edu/research/2010/04/01/study-exercise-should-be-prescribed-more-often-for-depression-anxiety/