I don’t think there is a person living in the world who can honestly claim they have never coughed after toking on cannabis. It seems to be part of the experience for some folks. But why does it happen? How can you minimize it? And is this a sign that it’s harmful?
A landmark 2006 UCLA study conducted by Donald Tashkin, a pulmonologist who has studied marijuana for 30 years, found no connection between cannabis use and lung cancer, even with heavy use.
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“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,” Taskin said. “What we found instead was no association at all, and even a suggestion of some protective effect.”
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Another UCLA study, this one