Exploring the bidirectional relationships between night eating, loss of control eating, and sleep quality in Chinese adolescents: A four-wave cross-lagged study

Does use of health behaviours to cope with stress predict sleep impairment in trauma-exposed community adults?

Individuals who have been exposed to trauma experience high levels of sleep impairment. Given the well-established negative effects of stress on sleep, the ways in which trauma-exposed individuals cope with stress is likely to be associated with their sleep. This study examined how the use of health behaviours (i.e., exercise, comfort eating, and maintaining a self-care routine) to cope relate to sleep impairment in a community sample of trauma-exposed adults (N = 84, mean age = 35.1, 83% female). We also tested whether use of health behaviours to cope moderates the relationship between psychological distress and sleep impairment. Results demonstrate that exercise and maintaining a self-care routine to cope are associated with less sleep impairment, while comfort eating to cope is associated with greater sleep impairment. Further, comfort eating to cope moderated the relationship between distress and sleep impairment. Findings suggest that the use of health behaviours to cope is differentially associated with sleep impairment, which has important clinical and research implications for the health of trauma-exposed adults.

Screen use while eating is associated with lower intuitive eating and higher disordered eating in Chinese adult men and women

OBJECTIVE

We aimed to explore the potential associations between screen use while eating and intuitive eating and disordered (thinness-oriented and muscularity-oriented) eating behaviors.

METHODS

Analyses included 600 Chinese adults (50% women; Mage  = 30.67, SD = 8.08) recruited online. The use of four major screen devices was captured, including cell phones, tablets, computers, and TVs. Three types of eating behaviors were examined, namely intuitive eating, thinness-oriented disordered eating, and muscularity-oriented disordered eating. Pearson correlation and hierarchical regression analyses were conducted separately for men and women to examine the sex-specific associations between screen use while eating and intuitive eating, thinness-oriented disordered eating, and muscularity-oriented disordered eating.

RESULTS

In both men and women, more screen use while eating was significantly associated with lower intuitive eating, higher thinness-oriented disordered eating, and higher muscularity-oriented disordered eating, above and beyond total screen time and social media use.

DISCUSSION

We found preliminary evidence for the significant links between screen use while eating and intuitive eating and disordered eating. Given the global increases in screen use, continued research is warranted to further explore the role of screen use while eating in the development and maintenance of intuitive eating and disordered eating.

PUBLIC SIGNIFICANCE

Much remains unknown regarding screen use while eating and eating behaviors. We found that in both Chinese men and women, more screen use while eating was significantly and uniquely associated with lower intuitive eating, higher thinness-oriented disordered eating, and higher muscularity-oriented disordered eating. Findings highlight the importance of incorporating screen use while eating in future research on intuitive eating and disordered eating.

Relationships between weight bias internalization and biopsychosocial health outcomes: A prospective study in Chinese adolescents

OBJECTIVE

An extensive literature has documented the deleterious effects of weight bias internalization (WBI) on biopsychosocial health outcomes. Still, this research is largely confined to the Western context. Furthermore, few studies have explored associations between WBI and biopsychosocial health outcomes, including in non-Western adolescent populations.

METHOD

The present study explored the longitudinal relationships between WBI and body dissatisfaction, disordered eating, psychosocial impairment related to eating disorder features, and psychological and physical well-being in a sample (N = 1549; aged 11-18 years at baseline) of Chinese adolescents. Relationships between study variables were examined between two waves of data measurement (Time 1, baseline, and Time 2, 6-month). Cross-lagged and multivariate models were used to explore prospective relationships between WBI and biopsychosocial correlates.

RESULTS

Bidirectional relationships were observed between WBI and biopsychosocial correlates in Chinese adolescents. Adjusting for covariates and other predictor variables, higher body dissatisfaction, disordered eating, psychosocial impairment, and psychological distress at Time 1 predicted higher WBI at Time 2. Furthermore, higher WBI at Time 1 predicted higher body dissatisfaction, disordered eating, psychosocial impairment, and psychological distress at Time 2.

DISCUSSION

Weight bias internalization and psychosocial correlates were interrelated across time in Chinese adolescents. Improving WBI might be promising in the prevention of eating and body image disturbances and diminished psychosocial well-being. Similarly, reducing eating and body image disturbances and improving psychosocial well-being might be useful prevention targets in reducing WBI in Chinese adolescents.

PUBLIC SIGNIFICANCE

The present study represents an initial effort to explore bidirectional relationships between WBI and biopsychosocial health outcomes in Chinese adolescents. Findings suggest bidirectional relationships between WBI and psychosocial variables, highlighting the potential utility of incorporating WBI interventions into eating pathology and poor psychosocial well-being prevention designs for Chinese adolescents.