This paper aims to analyze the effects of physical activity, screen time, and academic burden on adolescent health in China and compare their effects by using the nationally representative sample data from the CEPS (China Educational Panel Survey) cross-section data. This paper first uses regression analysis to examine the relationship between physical activity, screen time, academic burden and health among Chinese adolescents. Then, this paper uses the clustering analysis the influence of physical activity, screen time, and academic burden on the health of Chinese adolescents. The empirical results show that: (1) along with exercise, helping with the housework also has a clear health-promoting effect on adolescents; (2) the time spent surfing the Internet or playing video games, and heavy studying or homework off campus have a negative effect on adolescents’ self-rated health and mental health; (3) physical activity has the greatest impact on self-rated health, while screen time has the greatest impact on mental health, and academic burden is not the most important factor affecting adolescent health in China.

Social support can affect an individual’s physical activity and activity habitus. This study aims to explore: (1) the correlations between physical activity and parental/peer support among Chinese college students; (2) the differences between the effects of parental/peer support on college students’ physical activity. To achieve these aims, we conducted a cross-sectional study from September to December 2021, recruiting 1005 students (479 male respondents) from seven comprehensive universities in western China. Through OLS linear regression and quantile regression, we empirically testify that both parental support and peer support have significant influence on physical activity and activity habitus of Chinese college students, and peer support has greater impact. We also examine such effects of both types of support by grouping the samples into two groups on the bases of their existing physical activity habitus. We posit that as the most intimate interpersonal relationships, parental support and peer support play a key role in college students’ physical activity and activity habitus, and peer support has greater impact as they step into college. Our study provides insights into the factors of physical activity and activity habitus and we propose that attention regarding the impact of social support should be paid when we are trying to promote the physical activity of college students.

BACKGROUND: In the discourse on the heterogeneity of gender and environmental concern, gender equality awareness can further illuminate the complexity of gender and environmental concern across different cultural backgrounds. OBJECTIVE: Differing from prior research, our study focuses on exploring the relationship between different genders, gender equality awareness, and environmental concern, as well as investigating whether gender equality awareness has distinct effects on environmental concern among different genders. METHODS: Utilizing data from the 2021 China General Social Survey (CGSS), we conducted a theoretical investigation into gender differences in environmental concern. First, we used descriptive statistics to observe the differences between the samples. Secondly, in order to compare the influence of gender equality awareness on different genders, we conducted t -tests on gender subgroups. Subsequently, an Ordinary Least Squares (OLS) regression model was employed to examine the effects of gender and gender equality awareness on environmental issues. Finally, gender equality awareness was introduced as a moderating variable to explore its potential interaction with gender and investigate whether a moderation mechanism exists between gender and environmental concern. RESULTS: Findings indicate that 1) male respondents in China exhibit greater concern for the environment compared to female respondents; 2) higher levels of gender equality awareness are positively correlated with higher levels of environmental concern; 3) the influence of gender on environmental concern is moderated by the degree of gender equality awareness. Specifically, when gender equality awareness is strengthened, female respondents exhibit a higher degree of environmental concern. CONCLUSION: Enhancing gender equality awareness contributes to improving both social gender equality and equitable concern for the environment. The findings could provide insights for similar developing countries like China.