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.
Your leg may fall asleep for different reasons, but it most often is due to nerve irritation. If you sleep on your leg a certain way or leave your legs crossed for too long, there may be sustained pressure on the nerve. This can cause the feelings of pins and needles once the pressure from the nerve is relieved.