Mental defeat is a common problem among combat veterans. It may be part of a chronic problem called post-traumatic stress disorder (PTSD). PTSD is a chronic anxiety disorder. The term shell shock was first used during World War I to describe this anxiety disorder.
PTSD is now recognized as a stress disorder that can occur at any age, including childhood. During our more modern history, wars overseas, military combat, and acts of terrorism have been linked with PTSD. Natural disasters, sexual and criminal assaults, and domestic violence can also lead to PTSD.
Studies show that people who suffer mental defeat are more likely to develop severe and chronic PTSD. Treatment may be less effective and take longer for patients with high levels of mental defeat.
Your family member may have better results with early intervention. These kinds of mental disorders can be treated successfully. It may be helpful to contact your mental health center or veterans administration office for more information. They may have a list local resources available for combat veterans.