The study aimed to investigate the relationship between the level of physical activity and body dissatisfaction in high school students. This is a study of a quantitative, cross-sectional, exploratory approach to data analysis, carried out with 260 female and male adolescents aged 15 to 18 years old from a public school, located in downtown Teresina- PI. As instruments of data collection, a Body Dissatisfaction Assessment Questionnaire for Adolescents was used, developed by Guillén et al. (2003), the Habitual Physical Activities Questionnaire, originally developed by Russel R. Pate, translated and modified by Nahas (2003). He indicated that there is a higher prevalence of students classified as moderately active (31.5%) followed by the less...