The purpose of this research was to determine the relationship of cognitive function between students in normal and obesity categories in high school. The method used in this research is descriptive quantitative research. The population in this study were high school students in Subang City. The technique in this study uses Saturation Sampling and Simple Random Sampling techniques. The samples that have been determined in this study are 44 students high school using descriptive research designs. The instruments used in this study are Growth Chart, grid concentration exercise, digit span, and TPA (Academic Potential Test). The results of the analysis, the value of Tcount for data with Equal Variances Assumed is 2.409 with value of probability (p-value) is 0.02. Based on the data from the analysis, the value of Tcount (2.049) with a probability value (0.020) is smaller (<) than 0.05. Then H0 is rejected, so it can be concluded that there are significant differences in cognitive functions between normal student and obesity categories.

Self-confidence is a feeling of confidence in one's abilities without fear and being able to solve all life's challenges without comparing them with the abilities of others. This statement does not apply to people with HIV-positive because the stigma attached to them by society, such as groups of sinners, guilty, recipients of curses, and even torment, lower their self-confidence of people with HIV-positive. Physical activity through football has an important role in changing stigma and is a way for people with HIV-positive to be accepted by society regardless of their status. This study aims to determine the effect of physical activity through football on the self-confidence of people with HIV-positive. The research uses causalcomparative or ex post facto research methods. Sampling used a purposive sampling technique with a sample of 5 people with HIV-positive who participated in football activities. The instrument used is a closed questionnaire using a Likert Scale. Based on the validity test of a valid questionnaire as many as 28 items out of 50 statement items and reliability test results obtained 0.722021 and included in the reliable criteria. Processing and analyzing data, it was found that the score of people with HIV-positive who took part in football activities was 514 from a maximum score of 700 after the percentage of the results was 73.43%. Thus, researchers can conclude that physical activity through football can affect the selfconfidence of people with HIV-positive.