A woman spent 73 years relying on a steel lung to breathe. This medical device, also known as an iron lung, was necessary for her to survive. The woman's condition was a result of polio, a disease that can cause paralysis and respiratory problems.

Her sister recently shared information about the woman's experience with the BBC. Further details about the woman's life and her experience with polio are available from the BBC. The sister's account provides insight into the woman's condition and her reliance on the steel lung for an extended period of time.