Quote:
Some critics exaggerate the dangers of marijuana smoking by fallaciously citing a study by Dr. Tashkin which found that daily pot smokers experienced a "mild but significant" increase in airflow resistance in the large airways greater than that seen in persons smoking 16 cigarettes per day.1 What they ignore is that the same study examined other, more important aspects of lung health, in which marijuana smokers did much better than tobacco smokers. Dr. Tashkin himself disavows the notion that one joint equals 16 cigarettes....etc.etc.
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Hmmmm, but you should really quote your cut & paste sources.
Actually there are some interesting points made here:-
http://www.norml.org/index.cfm?Group_ID=3475