Context Rapid developments in e-cigarettes, or electronic nicotine delivery systems (ENDS),
and the evolution of the overall tobacco product marketplace warrant frequent evaluation of …

Introduction Waterpipe tobacco smoking is harmful to health however its prevalence
estimates remain uncertain. We aimed to systematically review the medical literature on …

Purpose To estimate the prevalence of depression and loneliness during the US COVID-19
response, and examine their associations with frequency of social and sexual connections …

Introduction An increasing body of research indicates that use of electronic nicotine delivery
systems (ENDS) predicts cigarette initiation. However, no studies examine if risk for cigarette …

OBJECTIVES: To identify predictors of becoming a daily cigarette smoker over the course of
4 years. METHODS: We identified 12-to 24-year-olds at wave 1 of the US Population …

Introduction Tobacco use mostly begins in adolescence and young adulthood. Earlier age of
initiation of cigarette smoking is associated with greater nicotine dependence and sustained …

As adolescents cross the threshold to young adulthood, they encounter more opportunities
to engage in or accelerate previously discouraged or prohibited behaviors. Young adults …

Objective To assess the extent to which multiple tobacco product use among adolescents
and young adults falls outside current Food and Drug Administration (FDA) regulatory …

Background Although electronic cigarettes (e-cigarettes) may help some smokers quit, some
young adult never-smokers are now using e-cigarettes recreationally, potentially increasing …

Background Young adults have the highest rates of alcohol, tobacco, and other drug use
relative to any other age group. Few studies have examined the co-occurrence of substance …