Lung capacity and respiratory health are leading markers of death, even more so than genetics. There is research that suggests the potential for extending life based on the size and capacity of your lungs.
Research has shown that people with larger lung capacity tend to live longer than those with smaller lung capacity, and that even people who have had double lung transplants tend to have longer lifespans if transplanted with larger lungs. However, while breathing is important, it isn't the only factor that affects longevity.