John Prestwich has needed the assistance of an iron lung for 48 years as a result of his teenage polio infection. However, John does not see his iron lung as a sort of prison, but rather embraces it as a life-saving friend. Prestwich would be unable to live without the lung, and if the machine stopped working he could die within three minutes.
However, he does not have to live in the iron lung all the time. With modern technology, people designed a smaller machine that he can use at home. The new machine is the size of his chest and performs almost the same exact functions as the large iron lung.
Prestwich also shares parts of his personal story: