National institute of Mental Health according In the U.S.A. alone about 8 million people have PTSD Statistics: PTSD Among Adults according according to PTSD Statistics among Adults National institute of Mental Health National institute of Mental Health suffers from post-traumatic stress disorder anxiety disorder according to 9 percent National Institutes of Health National institute of Mental Health Post-Traumatic Stress Disorder Among Adults - NIMH National Institute of Mental Health only about half 3.5 percent of U.S. adults Statistics: PTSD Among Adults National institute of Mental Health according to according to the National Institutes of Health 3.5 percent National institute of Mental Health