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.
Famous People with Post-Traumatic Stress Disorder Post-traumatic stress disorder (PTSD) is an anxiety disorder caused by your experience with a traumatic event. These events may include near death experiences, sexual assault, participation in war activities, and serious injuries. People with PTSD usually experience selective amnesia regarding the event, disturbing nightmares, and high levels of anxiety long after the event. PTSD does not just happen among regular people. Famous people also suffer from PTSD.