A shell-shocked WW1 soldier in the trenches, 1916
A shell-shocked WW1 soldier in the trenches, 1916 A creepy-looking picture of a shell-shocked soldier. Shell shock was a term used for what is now known as Post Traumatic Stress Disorder (PTSD). This psychological disorder occurs when someone goes through a traumatic event such as war, severe abuse, or other highly distressing situations. Symptoms of PTSD include avoidance of others, intrusive thoughts, and extreme altercation in mood and arousal. People with PTSD have intense flashbacks to their traumatic events and may dissociate from reality. PTSD is thought to occur due to the brain's inability to process trauma fully. The brain will usually process experiences and "store" them. Still, the emotional distress of some of these situations may lead to the brain replaying them over and over because it cannot understand what has happened or why it occurred (these are usually thoughts of people of such events). PTSD can lead to other psychological disorders such a