Smoking Is Bad for You. Nicotine Isn't—but Politicians Keep Trying To Ban It.

Research increasingly highlights nicotine’s role in the public perception of smoking risks, despite its lack of direct involvement in the cancers and lung diseases linked to combustible tobacco products. While nicotine is highly addictive and contributes to dependence, studies suggest it is the thousands of other chemicals produced when tobacco burns that cause most of the severe health damage. This distinction raises questions about how nicotine itself is regulated and marketed, particularly in products like vaping, where it remains a central component. The debate underscores the need to separate the harms of addiction from those of combustion in public health discussions.

Nicotine has become associated with the worst harms of smoking, even though the chemical is not responsible for the cancers or lung disease caused by combustible tobacco.