Bessel van der Kolk is one of the world’s leading experts on trauma and the healing of trauma. His book The Body Keeps the Score: Brain, Mind, and Body in the Healing of Trauma, is a classic in the field, one of the best non-fiction books I have ever read.
Bessel starts this seven-minute film clip by describing how the diagnosis for post-traumatic stress disorder (PTSD) was created to remind the Department of Veterans Administration in the USA to take care of war veterans. It was quite clear that a large of number of Vietnam veterans were traumatised by their war-time experiences.