[quote][url=http://www.webmd.com/smoking-cessation/news/20121207/recreational-marijuana-health-effects]Here is some sauce[/url] [/quote] [quote]"Putting smoke in your lungs is not good for the lungs," says Roland Lamarine, HSD, professor of public health at California State University, Chico. He reviewed published studies on the health effects of marijuana earlier this year for the Journal of Drug Education. [b]Smoking marijuana produces a nearly threefold increase of inhaled tar compared with tobacco[/b], according to some studies. Other research suggests that marijuana smokers, compared to cigarette smokers, inhale more deeply and hold their breath longer. "There are still questions that aren't answered about lung damage," Lamarine says. For cigarette smokers who also smoke marijuana, there may be an additive effect, he says.[/quote]