The Iron Lung

In the early 20th century, polio was one of the most feared diseases in the world. It struck quickly, and for some, left lasting paralysis—especially in the muscles that control breathing. That’s where the iron lung came in. This large, capsule-like machine enclosed a patient’s body up to the neck in an airtight chamber. Through shifts in air pressure, it caused the chest to rise and fall, simulating natural breathing. It was loud, cumbersome, and required constant attention—but for many, it meant survival. Visit the McGovern Historical Center Blog to read the complete story about the Iron Lung.