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Alcohol consumption is prevalent in young adult women and linked with breast cancer risk. Research to inform interventions targeting alcohol consumption as a breast cancer prevention strategy is limited. We examined young women's awareness of alcohol use as a breast cancer risk factor, identified correlates of awareness, and determined how awareness and conceptual predictors relate to intentions to reduce drinking. Women aged 18-25 years who drank alcohol in the past month (N = 493) completed a cross-sectional survey. Measures captured sociodemographics, breast cancer risk factors, awareness of alcohol use as a breast cancer risk factor, intentions to reduce drinking, and conceptual predictors. Analyses examined correlates of awareness and associations between awareness, conceptual predictors, and intentions to reduce drinking. Awareness was low (28%) and intentions to reduce drinking were moderate (M = 2.60, SD = 0.73, range 1-4). In multivariable analyses, awareness was associated with greater worry about cancer, beliefs that there's not much one can do to reduce cancer risk and everything causes cancer, higher perceived breast cancer risk, and stronger beliefs that reducing drinking reduces breast cancer risk. Awareness was not associated with intentions to reduce drinking. Younger age, older age of alcohol initiation, negative attitudes towards alcohol, fewer friends consuming alcohol, and stronger self-efficacy were associated with intentions to reduce drinking. Few young women recognize alcohol consumption as a breast cancer risk factor. Researchers and policymakers can apply our findings to design new or refine existing interventions to optimize their impact on awareness and alcohol consumption in young women., (© Society of Behavioral Medicine 2023. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)

Waterpipe tobacco smoking is a public health concern that poses many of the same health risks as cigarette smoking, especially among young adults-a subpopulation characterized by the highest prevalence of waterpipe tobacco smoking. Nevertheless, it remains understudied relative to other forms of tobacco use. We examined sociodemographic, behavioral and cognitive factors associated with young adults' motivation to quit waterpipe smoking using a theory-informed approach. We completed a secondary analysis of baseline data on waterpipe tobacco smoking beliefs and behavior collected from 349 US young adults aged 18-30 years. We analyzed sociodemographics, tobacco use and cessation behaviors and perceptions, and theory-related constructs associated with motivation to quit waterpipe tobacco smoking using linear regression. Overall, participants reported low motivation (mean = 2.68, SD = 1.56, scale range 1-7) and high self-efficacy (mean = 5.12, SD = 1.79) to quit waterpipe tobacco smoking. In multivariable analysis, prior quit attempts (β = 1.10, P < 0.01), greater perceived risks of waterpipe tobacco smoking (β = 0.42, P < 0.01) and increasingly negative attitudes toward waterpipe tobacco smoking (β = 0.29, P < 0.01) were associated with higher motivation to quit. These findings highlight the importance of those factors as potential cessation determinants. These findings can help guide the development and refinement of interventions targeting young adult waterpipe tobacco smoking., (© The Author(s) 2023. Published by Oxford University Press. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)