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A public health expert blames smoke, not nicotine, for causing thousands of deaths caused by cigarette smoking each day.

“There have been many decades of research on the health effects of cigarette smoking, and we have known since at least the 1970s that the primary cause of the cancers, heart and lung disease is the repeated inhalation of smoke,” said Prof. David T. Sweanor, chair of the advisory board of the Centre for Health Law, Policy & Ethics at the University of Ottawa.

Sweanor is a Canadian legal expert who believes that tobacco harm reduction is one of the greatest public health breakthroughs in history. [...]