A Practice Theory Approach to Understanding Poly-Tobacco Use in the United States.

This paper uses practice theory to explore a poorly understood phenomenon with important health implications: How and why an increasing number of young Americans regularly use multiple tobacco products. Practice theory is a promising alternative to traditional public health frameworks for understanding everyday activities related to health. It broadens the analytic focus from characteristics of individuals to viewing practices as having lives of their own in competing for, winning, and losing practitioners. We drew from in-depth interviews with 21 young adults (ages 18-29; California) who regularly use cigarettes, electronic nicotine delivery systems (ENDS), and/or smokeless tobacco. Participants described their everyday routines. We examined the characterizing elements of each tobacco product use practice and the roles of each within participants' routines. We found that each product comprises a distinct substance use practice with different roles to play in different situations and contexts. Notably, many participants rotated between or modulated use of different products as a strategy for reducing perceived tobacco-related harms. Cigarettes are uniquely capable of aiding in the space-time organization of everyday activities and coping with crisis, while ENDS and smokeless tobacco open up times and spaces for nicotine consumption. This kind of approach aids our understanding and anticipation of the evolution of tobacco use practices as new products and regulations are introduced.