I am reading how Cannabis smoke seems to be helping cigarette smokers! TRUST me - I am such an anti -cigarette smoker (always have been) and I too have trouble wrapping my head around some of the facts myself! That is what they are facts.
One of my favorite Docs. that does in fact address this topic is :
Watch and then share with someone you love! You might be saving their life. Giving them a less toxic option to help them live the best life possible.