death rate of smoking cigarettes Progression the epidemic in high-income regions and its effects on male-female survival differences: a cohort-by-age analysis of 17 countries | BMC Public Health Cigarette Smoking is Down Nationwide,

Table 4.18A Numbers (in Thousands) of Persons Who Initiated Cigarette Use in the United States, Their Mean Age at First Use, and Rates at First Use (Per 1,000 Person-Years of Exposure): 1965-2003, Based on 2002-2004 NSDUHs

Retrieved September 13, 2013

Cigarette smoke sensors analyze the air that flows through the device in search of specific chemicals and particles found in tobacco smoke

In this LA Times article from 1992, titled The Sweet Smell of Success, gamblers were found to drop 45.1% more coins into slot machines in an area that was scented with a pleasant odor. Clearly, smell is a strong part of marketing and, judging by these results, justifiably so