Cloudy Issue –

Apr. 7, 2019 – While cigarette smoking is the top risk factor for lung cancer, some of scientific evidence suggests there’s no link between marijuana smoking and lung cancer. That’s according to a 2017 federal report that rounded up nearly two decades of studies on marijuana, research that’s been limited by the federal government’s classification of marijuana as a controlled substance like heroin. While cigarette smoking is a major cause of heart disease, the report concluded it’s unclear whether marijuana use is associated with heart attacks or strokes. But there’s strong evidence linking long-term cannabis smoking to worse coughs and more frequent bouts of chronic bronchitis, according to the report from the National Academies of Sciences, Engineering and Medicine.

Full Story @ ABCNews.com

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