1950s cigarette ads vintage L & M posters from the Shock of the old: 11

Plus, you get 4000 fewer chemicals than you do in cigarettes

The agency states the following: Cigarette smoking causes more than 480,000 deaths annually in the US, or about 20% of all deaths in the country More than ten times as many US citizens have died prematurely due to cigarette smoking than were killed in all the wars fought by the US About 90% of all lung cancer deaths are related to smoking About 80% of all deaths caused by chronic obstructive pulmonary disease (COPD) are smoking-related Smokers are about 25 times more likely to develop lung cancer than non-smokers Smoking can cause 12 kinds of cancer If no one in the US smoked, the CDC estimates that the number of cancer-related deaths could be cut by about a third

Importantly, all cannabis smokers in this cohort were also tobacco users, raising concerns about residual confounding by tobacco or other factors (87)

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