Most new emphysema is propagated in high mechanically affected lung regions rather than in lung areas with small airways disease.

Work fuels livelihoods, but certain jobs expose lungs to unseen threats, eroding respiratory health with every shift. Dust, ...

The first is the loss of support of the small airways in emphysema, leading to their collapse. The second is the chronic inflammation or the bronchiolitis, taking place in the small airways ...