Brain death starts with some sort of devastating neurologic injury, They include traumatic brain injury a stroke caused by a ruptured blood vessel in the brain or if the heart has stopped and the brain goes without oxygen and other nutrients it needs to survive for a long period of time. Life support exacerbates the problem because those who are brain dead do not have a life to sustain. Life support refers to the medications and equipment used to keep people alive in medical situations. These people have one or more failing organs or organ systems and would not be able to survive without help. The brain and spinal cord central nervous system can also fail but in this case life support is directed at keeping the other body systems functioning
