Conditions caused by smoking marijuana are similar to those produced by smoking tobacco, University-led study indicates A recent Yale study shows that marijuana use and smoking tobacco lead to similar health problems. University researchers have found that smoking marijuana is correlated with an increased risk of conditions similar to those produced by smoking tobacco and can compound health problems resulting from smoking tobacco. Brent Moore, a professor of psychiatry at the Yale School of Medicine, led the study, which was published in the Journal of General Internal Medicine. [continues 364 words]