The expectancy-value (EV) framework is among the most prominent psychological approaches to predicting behavioral intentions. However, how expectancies and values are cognitively integrated (e.g., multiplicatively, additively or averaging) to produce intentions has yet to be tested. This research combined EV and Information Integration Theory…

Background: Sleep deprivation adversely impacts cognitive performance. A nutritious diet is one strategy that can prevent sleep deprivation and its adverse effects. However, few data exist regarding the influence of diet on sleep duration among adolescents. Hence, it is important to assess whether dietary habits are linked to adequate sleep among…

With the rapid rise of global temperatures and the negative effects of greenhouse gases, the destruction of natural resources and unlimited development is rapidly endangering the earth. The inefficient use of meat-based agriculture has contributed to contemporary concerns about environmental degradation and global food inequality. Therefore, the…

Background: Four-day school week (FDSW) use has increased substantially among US districts in recent years, but limited data exist on health impacts of this school schedule. This study examined associations of reduced school exposure via FDSWs with adolescent health and risk behaviors, obesity, and food security. Methods: Self-report data from…

Background: Childhood obesity is a public health concern that disproportionately affects populations from low socioeconomic status (SES) and minority groups. Evaluation of social and health risk factors of preschool children living along the Texas-Mexico border provides feedback to design health interventions. Methods: South Texas Early Prevention…

Objective: To examine the association of multiple health behaviors to mental health functioning in male and female collegiate athletes. Participants: Prospective National Collegiate Athletic Association (NCAA) Division I athletes (n = 183) completed a health and wellness survey in the summer prior to joining the athletic program. Methods: Health…

Prior research studies suggest that maternal polyunsaturated fatty acids could have protective effects on neurodevelopmental outcomes. The objective of this study was to examine associations between maternal polyunsaturated fatty acid intake during pregnancy and risk for autism spectrum disorder and other non-typical development in a prospective…

Objective: Approximately one-third of college students are categorized as overweight/obese and elevated weight has been associated with increased risk of depressive symptoms. Less is known about protective factors in this context. This study examined associations between depressive symptoms and health behaviors, as well as body image variables…

Objective: "MyPlate," a tool for communicating the federal nutrition guidelines in the USA, may contribute to healthy diets and behaviours, yet whether and how it is used by teachers and school principals is unknown. The purpose of this study was to examine (1) the prevalence of using nutrition lessons and MyPlate guidelines by K-12…

The aging process makes older adults vulnerable to the detrimental health effects of environmental contaminants. Our study assessed older adults' perceptions regarding diet as protective against environmental contaminants, levels of concern about exposure to environmental contaminants, and interest in learning about protective food-related…

This report examines the results of the 2015 Youth Risk Behavior Survey (YRBS), developed by the Centers for Disease Control and Prevention to monitor health-risk behaviors that contribute to the leading causes of death and disability among youth and adults. The YRBS, conducted biennially at the national and state/local levels, monitors the…

Introduction: Social support is important for behavior change, and it may be particularly important for the complexities of changing multiple risk behaviors (MRB). Research is needed to determine if participants in an MRB intervention can be encouraged to activate their social network to aid their change efforts. Methods: Healthy Directions 2, a…

Background: Adolescent overweight and obesity are serious health risks, with prevalence varying by sociodemographic group. Studies link children's weight status and sex/race-ethnic differences with meeting recommendations for physical activity and diet. But, research examining the intersection of sociodemographic characteristics, behavior, and…

Introduction: To compare the health status of older adults with and without vision impairment, this study employed a disability framework consisting of four stages, progressing from risk factors; through pathology and impairments that result in declining functioning; and eventually to disability. Methods: Data from five rounds (1999 to 2008) of…

Objective: To examine changes in health behaviors among US emerging adults 1 year after high school. Participants: The national sample of participants (N = 1,927), including those attending 4-year college/university (n = 884), 2-year colleges/technical schools (n = 588), and no college (n = 455), participated in annual spring surveys 2013-2014.…