There are steps ex-smokers can take to speed up the healing, but at least some of the damage is likely permanent ...

Former smokers are still more likely to develop diseases like COPD and lung cancer than people who have never smoked.

A new study by a team of McGill researchers could help explain why people who have quit smoking remain at elevated risk of lung disease long after their last cigarette.

Lung cancer remains the leading cause of cancer deaths in the United States and older adults are at higher risk. But only ...