Very interesting article, glad I never was into that shit much or I really be in deep shit now.

Heavy cannabis users may be at greater risk of chronic lung disease - including cancer - compared to tobacco smokers, two studies suggest.

One study found a higher risk of lung cancer for those who smoked one joint a day compared with those who smoked 20 cigarettes a day over the same period.
Another found bullous disease - a form of emphysema - occurs 20 years earlier in cannabis smokers.
The studies appear in Respirology and the European Respiratory Journal. Both studies come at a time when the government is considering whether to change the laws on the possession of cannabis.


BBC NEWS | Health | Warning over cannabis lung harm