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.
This can lead to damage of the heart, brain, and other organs. This type of low blood pressure can be life threatening if not treated right away. When to Contact a Medical Professional. If low blood pressure causes a person to pass out (become unconscious), seek treatment right away. Or call the local emergency number such as 911. If the person is not breathing or has no pulse, begin CPR.