On 3 July 1946, the US National Mental Health Act came into being, establishing and providing funds for the National Institute of Mental Health (NIMH).

As well as putting mental health centre stage, the Act had been given a tremendous boost by research carried out by American psychiatrist Abram Kardiner on veterans of the First World War: Kardiner described in detail the symptoms of post-traumatic stress disorder and the phenomena of pathological dissociation (“flashbacks”). 

In 1945, the phrase “the 2,000-yard stare” was coined in the US to describe the blank, unfocused gaze often seen in soldiers who had suffered combat-related mental trauma. Many soldiers returning from war suffered PTSD.

In addition to studies of war trauma, Kardiner also studied disorders in victims of a deadly fire at the Cocoanut Grove Nightclub in Boston in 1942. In particular, psychiatrists described for the first time the stages of experiencing acute grief. The US government recognised how immense the problem of mental disorders was and realised that government intervention was needed to prevent future social conditions. There was a serious shortage of mental health professionals in the United States at the time, and the most advanced treatments and understanding of the nature of mental disorders "had not kept pace" with the emergence and development of severe frontline disorders.

Once the Act was adopted, research funding came flooding in and led to several significant advances in the diagnosis and treatment of mental disorders, new medicines and treatments, and the development of techniques for overcoming PTSD and socialising veterans.

Source: Official website of the National Institute of Mental Health