<unk>  is a term coined in World War I by British psychologist Charles Samuel Myers to describe the type of post traumatic stress disorder many soldiers were afflicted with during the war (before PTSD was termed). It is a reaction to the intensity of the bombardment and fighting that produced a helplessness appearing variously as panic and being scared, flight, or an inability to reason, sleep, walk or talk. During the War, the concept of<unk>  was ill-defined. Cases of<unk> " could be interpreted as either a physical or psychological injury, or simply as a lack of moral fibre. The term<unk>  is still used by the United States’ Department of Veterans Affairs to describe certain parts of PTSD, but mostly it has entered into memory, and it is often identified as the signature injury of the War. In World War II and thereafter, diagnosis of<unk> " was replaced by that of combat stress reaction, a similar but not identical response to the trauma of warfare and bombardment.
Shell shock
Cryptic shock
Neurogenic shock
Spinal shock
Septic shock
Surgical shock
Obstructive shock
Cardiogenic shock