Lung damage last after smokers quit

Cigarette smoke exposure fundamentally alters airway tissue in people with chronic obstructive pulmonary disease (COPD), and even while other aspects of health improve, the lung damage lasts long after a smoker quits.

University of Sydney researchers found that smoking lays the groundwork for airway thickening and even precipitates precancerous changes in cell proliferation that may be self-perpetuating long after cigarette smoke exposure ends.

Read more at University of Sydney