Answer:
Most people can get by with only one lung instead of two, if needed. Usually, one lung can provide enough oxygen and remove enough carbon dioxide, unless the other lung is damaged.
How long can you live with one lung?
Many people with one lung can live to a normal life expectancy, but patients are unable to perform vigorous activities and may still experience shortness of breath. Your chances for recovery from heart and lung transplants today are improved greatly since the first transplant operations done in the 70s and 80s.
