Why is marijuana just as destructive as cigarettes?
The answer is, it isn't. A recent study comparing nonsmokers,
tobacco-only smokers and marijuana-only smokers found there is no
correlation between lung cancer and marijuana use, even in heavy
marijuana smokers. A link to the study is given below:
(See related links)
You still have an increased risk of lung disease and "smoker's
cough", but consider this myth debunked.