During World War II, it was called shell shock. During the Vietnam War it was called the Vietnam Syndrome. It wasn't until 1980 that psychologists had an official term for the condition: Post-Traumatic Stress Disorder.
With the recognition of PTSD as a psychological condition, large-scale studies of the disorder began, said Dr. Rumi Kato Price, professor of psychiatry at Washington University School of Medicine.
"Now we have very well established evidence-based treatments for PTSD," said Price. "That took three decades (to develop)."