September 1955. Six-year-old Mark O'Brien moved his arms and legs for the last time. He came out of a thirty-day coma to find himself enclosed from the neck down in an iron lung, the machine in which he would live for much of the rest of his life. How I Became a Human Being is Mark O'Brien's account of his struggles to lead an independent life despite a lifelong disability. In 1955, he contracted polio and became permanently paralyzed from...