Categorical tobacco and cannabis co-use is not significantly associated with higher risk of conversion to psychosis When we defined tobacco and cannabis use categorically (no use, tobacco use only, cannabis use only, co-use), co-use of cannabis and tobacco was associated with higher risk of conversion compared to no use of either substance (HR = 1.69, 95% CI [0.962.97], P = 0.070, Supplementary Fig
Two things are very obvious: the filter on the cigarette allows obvious quantities of particulate matter (tar) through and into the lungs, and the lungs retain considerable amounts of these toxic particles when the smoker exhales
Epidemiology-based risk assessment using the benchmark dose/margin of exposure approach: the example of ethanol and liver cirrhosis
Structure, function and diversity of the healthy human microbiome
Tobacco use can also slow the bodys ability to heal