<unk>  symptoms align with the symptoms also found in psychological trauma, which is closely related to post-traumatic<unk>  disorder (PTSD).<unk>  differs from PTSD (among other things) in that a PTSD diagnosis requires a duration of symptoms over one month, which<unk>  does not. Fatigue-related symptoms The most common<unk><unk> s include: *The slowing of<unk>  time *Slowness of thought *Difficulty prioritizing tasks *Difficulty initiating routine tasks *Preoccupation with minor issues and familiar tasks *Indecision and lack of concentration *Loss of initiative with fatigue *Exhaustion Autonomic nervous system – Autonomic arousal *Headaches *Back pains *Inability to relax *Shaking and tremors *Sweating *Nausea and vomiting *Loss of appetite *Abdominal distress *Frequency of urination *Urinary incontinence *Heart palpitations *Hyperventilation *Dizziness *Insomnia *Nightmares *Restless sleep *Excessive sleep *Excessive startle *Hypervigilance *Heightened sense of threat *Anxiety *Irritability *Depression *Substance abuse *Loss of adaptability *Attempted suicides *Disruptive behavior *Mistrust of others *Confusion *Extreme feeling of losing control Battle casualty rates The ratio of<unk>  casualties to battle casualties varies with the intensity of the fighting. With intense fighting, it can be as high as 1:1. In low-level conflicts, it can drop to 1:10 (or less). Modern warfare embodies the principles of continuous operations with an expectation of higher<unk><unk>  casualties. The World War II European Army rate of<unk>  casualties of 1 in 10 (101:1,000) troops per annum is skewed downward from both its norm and peak by data by low rates during the last years of the war.
Combat stress reaction
Self-harm
Body substance isolation
Stranger anxiety
Listener fatigue
Automatism 
Derealization
Semantic satiation