In agricultural tractors for example, as a general rule 40 to 50 percent of the value of the machine will be lost in the first quarter of the machine's life and by the halfway point of lifetime, from 70 to 75 percent of the value will be lost.
People with PTSD may feel constantly alert after the traumatic event. This is known as increased emotional arousal, and it can cause difficulty sleeping, outbursts of anger or irritability, and difficulty concentrating. They may find that they are constantly on guard and on the lookout for signs of danger.
Post-Traumatic Stress Disorder. As defined by the American Psychiatric Association, Post-Traumatic Stress Disorder (PTSD) is a mental health condition that develops after an individual experiences or is exposed to a traumatic event. Examples of such events include the threat of death, serious injury, violence, or abuse.uch professions include the military, police officers, fireman, and EMTs. However, PTSD may also occur as the result of personal events in one?s life such as robbery, car accidents, abuse, or rape. Symptoms of PTSD most often occur within three months of the trauma but, in some cases, may take years to develop.