what in cigarettes causes cancer 16 cancers that can be caused by smoking Canada becomes first country to

Canada becomes first country to require a health warning directly on every cigarette Cigarettes contain thousands of chemicalsover 7,000 have been identifiedmany of which are toxic, and at least 70 are known to cause cancer. When a cigarette burns, these chemicals are inhaled deep How does smoking cause cancer? Cancer Research UK Smoking Cigarettes Causes Lung Cancer Cigarettes contain about 600 ingredients, but when burned, they produce over 7,000 chemicals. At least 70 of these chemicals are toxic and known to cause cancer. The primary components and resulting chemicals

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