A recent study in Lung Cancer found that individuals with cannabis use disorder were 3.87 times more likely to develop lung and/or bronchus cancer than individuals without cannabis use disorder. What’s more, those with cannabis use disorder and nicotine dependence were 10.32 times more likely to develop lung and/or bronchus cancer than individuals without either diagnosis. The researchers, based at the University of Southern California, posited a few potential mechanisms for this, including that marijuana is inhaled more deeply than tobacco and that it burns at a higher temperature than tobacco, which may lead to greater lung damage. Despite the industry–and now the federal government–claiming that marijuana has therapeutic benefits, evidence continues to emerge showing that the drug in fact reduces health.