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  • Writer's pictureBreathe Free Oregon

Cancer-causing and genotoxic effects of cannabis and CBD

Updated: Jan 10, 2022

Dr. Stuart Reece discusses known health risks of cannabis, including CBD. These include:

  • Cannabis is carcinogenic; there are more cancers related to cannabis than to tobacco and alcohol.

  • Cannabis causes birth defects.

  • Cannabis is genotoxic and can damage genes up to 4 generations out.

Health benefits are virtually unproven.


Cannabis is entering the food chain, causing widespread community exposure.



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