The largest study of its kind has unexpectedly concluded that smoking marijuana, even regularly and heavily, does not lead to lung cancer.
The new findings "were against our expectations," said Donald Tashkin of the University of California at Los Angeles, a pulmonologist who has studied marijuana for 30 years.
"We hypothesized that there would be a positive association between marijuana use and lung cancer, and that the association would be more positive with heavier use," he said. "What we found instead was no association at all, and even a suggestion of some protective effect."
I think the research is still incomplete, but I still believe that it will ultimately cause cancer.
This link provides some information. Some of it collaborates Rob's posting.
More research is needed, but what is already known is not good for one's overall general health.
Smoke of any type is not good for the lungs IMHO. It is just common sense.
There was no actual research, or data, in that link you posted.
Originally Posted by LANGER72
Truth is, there's never been a single case of cannabis only smoker's getting cancer, & we've been smoking cannabis for thousands of years on this planet.