Smoking marijuana could be more harmful than people realize, a new study suggests. Chest scans show marijuana smokers may be more likely to develop inflamed airways and a certain type of emphysema ...

Researchers from the University of Ottawa and The Ottawa Hospital have found marijuana smokers have a higher rate of emphysema and airway diseases compared to cigarette smokers. The findings, ...

Two more states legalized recreational marijuana earlier this month, the latest signs that pot use has become much more accepted by Americans. Recreational marijuana is now legal in 21 states, ...

Airway changes in a 66-year-old male marijuana and tobacco smoker with cylindrical bronchiectasis and bronchial wall thickening (arrowheads) in multiple lung lobes in a background of paraseptal and ...