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August 10, 2009 Zdroj: JoinTogether.org | 10. 08. 2009 |
Researchers who compared the effects of marijuana smoke to tobacco smoke
concluded that smoking marijuana did as much cellular and genetic damage as
smoking cigarettes, although only tobacco smoke damaged chromosomes, the
CanWest News Service reported Aug. 6.
Study author Rebecca Maertens of Health Canada and colleagues conducted animal
and bacterial studies to compare the effects of smoking tobacco and marijuana.
Maertens said the researchers wanted to test the claim that marijuana is less
harmful because it is a natural product.
Marijuana advocate Marc Emery challenged the findings, saying, "Where is the
proof of this DNA damage to Canadians? Are there mutations in the 15 million
Canadians who have smoked marijuana in the last 45 years?"
The study appears in the journal Chemical Research in Toxicology.
Smoking Marijuana Damages Cells, DNA, Study Suggests
