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Heavy Marijuana Use May Take Toll Although there was a suggestion that very heavy use of marijuana might be taking a toll on the lungs, the researchers could not get reliable estimates of the effects of very heavy marijuana exposure, as such smokers were relatively rare in the study population

8 Around the same time, Western tobacco companies also started incorporating reconstituted tobacco into cigarettes, in turn increasing nitrosamines, which are implicated in adenocarcinoma development

A Technical Study Group was formed that researched the burning mechanisms of a cigarette and ways to control it

Vaping propylene glycol and vegetable glycerine may lead to lung inflammation

But it neednt be this way