Marijuana Smoke Not as Damaging as Tobacco, Says Study

Occasional marijuana use does not appear to have long-term adverse effects on lung function, according to new research published in the Journal of the American Medical Association. Researchers from the University of Alabama at Birmingham and University of California at San Francisco analyzed marijuana and tobacco use among 5,000 black and white men from the national database, CARDIA (Coronary Artery Risk Development in Young Adults study), which was intended to determine heart disease risk...Full Story
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