Brain death results from a severe permanent injury to the brain. Like an injury from a gunshot wound to the head or a car crash. The brain no longer works and a person cannot breathe or sustain their life, but vital body functions may thrive in an intensive care unit for a short period of time. The person is kept on a breathing machine to keep the oxygen and blood moving to the vital organs. The person is moved to surgery to recover the organs. People who experience brain death can also donate tissue.