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Introduction More than 7,000 chemical compounds (constituents) have been identified in cigarettes and cigarette smoke,[1] at least 69 of which are known carcinogens.[2] In addition to cancer, cigarette smoke chemicals also cause cardiovascular, respiratory, reproductive, and developmental problems.[3] Smokers have heard of relatively few of these chemicals but have an interest in learning more about them.[4, 5] The 2009 Family Smoking Prevention and Tobacco Control Act requires the US Food and Drug Administration (FDA) to produce a list of harmful and potentially harmful chemicals in cigarette smoke

and community and population-based research to improve health outcomes across populations and eliminate disparities in care

This includes proper labeling, age verification, and adherence to restrictions on where and how products can be marketed and sold

It is also a leading factor for chronic obstructive pulmonary disease (COPD) and lung cancer