How can I lower my risk of lung disease?

Stay healthy... Things that we can control that affects lung health includes smoking and being exposed to pollutants. Smoking is obvious. But less obvious is living near a highway or factory or in a city known for its smog (l.A., houston, etc.) other than that, if you're healthy, there's not too much more we can do to lower lung disease risk. Maybe my pulm colleagues have some tips to add.