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This research explored adults' perceptions of how sexualized images typically found on social media might influence adolescent girls' mental health, what support girls might need should they experience mental health difficulties, and how such difficulties could be prevented or reduced.

Most outdoor food advertising (e.g. billboards and bus stops) features foods that are considered unhealthy. The most important technical challenge when designing policies to restrict unhealthy outdoor food advertising is defining 'unhealthy food'. To date, most restriction policies have used nutrient profiling models (i.e. foods are classified according to their nutritional composition) to determine which foods and beverages may be advertised. In Australia, state governments have endorsed a food category-based classification system, with no prescribed nutrient limits, which may create ambiguity when multiple users are identifying food advertisements to be restricted. 

In Australia, there are concerns that unrestricted junk food advertising during sports broadcasts increases short-term junk food consumption among viewers. Therefore, the present study aimed to estimate the impact of junk food and anti-junk food advertising on consumption inclinations.

The observed decline in children's active school transport (AST) across numerous countries over recent decades necessitates targeted, multi-level interventions to reverse this trend. However, data on young people's preferred AST interventions is lacking. This study aimed to explore children's preferences for AST interventions and assess differences between AST users and non-users among primary and secondary school students.

Research suggests there is considerable opportunity to improve children's movement behaviors while they are being cared for by their grandparents. An understanding of the extent to which grandparent practices facilitate children's engagement in physical activity is critical to the development of health interventions targeting grandparent caregivers.

Beaches are important settings for physical activity, with their quality (safety, amenities, aesthetics) influencing how well they support health. The quality of beaches may differ across neighbourhoods, with higher socioeconomic status neighbourhoods having disproportionately better access to beaches. This study examined the attributes of and activities taking place in beaches by neighbourhood socioeconomic status.

Natural outdoor environments such as green and blue spaces have increasingly been seen as key health and wellbeing determinants for adults. However, it is unclear if these effects are seen in young children. We examined the associations between access to natural green and blue space and young children's socioemotional development. 

Outdoor play in the home yard is an important source of physical activity for many preschoolers. This study investigated if home yard size and vegetation are related to preschooler outdoor play time.

To investigate associations between interpregnancy intervals (IPIs) and adverse birth outcomes in twin pregnancies.

Based on the socioecological conceptual model, the physical environment within the home, childcare and neighbourhood domains are key factors that influence preschool children's physical activity; however, the relative importance of each of these domains for preschool children's physical activity is unclear.