Background: Health-related behaviors often cluster during young adulthood, potentially increasing the risk of long-term adverse health outcomes. Understanding how lifestyle risk behaviors co-occur among university students is essential for developing targeted health promotion strategies. Objective: This study aimed to identify lifestyle risk profiles among university students based on the co-occurrence of smoking behavior, alcohol consumption, sedentary behavior, and body weight status. Methods: A cross-sectional study was conducted with 147 university students enrolled in a physical education and sport undergraduate program (mean age: 20.58 ± 2.94 years; 80.3% male). Physical activity and sedentary behavior were assessed using the International Physical Activity Questionnaire–Short Form (IPAQ-SF), while smoking and alcohol consumption were self-reported. Body mass index was used to classify weight status. Lifestyle risk profiles were identified using two-step cluster analysis based on regular smoking, alcohol consumption, sedentary behavior, and overweight/obesity. Differences in cluster distribution according to sex and federated athlete status were examined using chi-square tests. A two-step cluster analysis based on the Bayesian Information Criterion (BIC) and silhouette measure was used to identify lifestyle risk profiles. Results: Overall, 46.9% of participants had experimented with tobacco, 11.6% were current smokers, and 74.8% reported alcohol consumption. Participants accumulated an average of 3772.25 ± 1957.99 MET-min/week of physical activity. Three distinct lifestyle risk profiles were identified. Cluster 1 (46.9%), labeled the alcohol profile, was characterized by alcohol consumption without smoking and no prevalence of being overweight. Cluster 2 (20.4%), the multiple-risk profile, included participants who reported regular smoking, with nearly half presenting sedentary behavior and overweight/obesity. Cluster 3 (32.7%), the overweight profile, was characterized by overweight/obesity combined with alcohol consumption but no smoking. No significant differences were observed in the distribution of lifestyle profiles according to sex (p = 0.111) or federated athlete status (p = 0.087). Conclusions: Lifestyle risk behaviors cluster into distinct profiles among university students, with alcohol consumption appearing across multiple profiles and smoking concentrated in a specific high-risk group. These findings highlight the need for targeted health promotion strategies addressing multiple co-occurring behaviors within university populations.

Background: Teaching is a high-demand profession associated with elevated levels of occupational stress and burnout. While physical activity and body image have been linked to psychological well-being, their independent and combined associations with burnout in teachers remain insufficiently understood, particularly regarding potential sex differences. Objectives: To examine the associations between physical activity, body image satisfaction, and burnout symptoms in teachers, and to determine whether these relationships differ between men and women. Methods: A cross-sectional secondary analysis was conducted using data from two independent datasets, comprising 189 teachers from primary and secondary education in the Lisbon and Tagus Valley region, Portugal. Burnout was assessed using the Maslach Burnout Inventory, body image was assessed using the Figure Rating Scale, and physical activity using the International Physical Activity Questionnaire-Short Form. Multiple linear and logistic regression analyses were performed, and moderation analyses were conducted, controlling for age and years of service. Results: Moderate physical activity was significantly associated with lower depersonalization (β = -0.180, p = 0.022) and higher personal accomplishment (β = 0.197, p = 0.011), but not with emotional exhaustion. Body image was not significantly associated with burnout dimensions. A borderline association was observed between moderate physical activity and body image dissatisfaction (OR = 4.467, p = 0.050). Additionally, sex did not moderate the associations between physical activity and burnout outcomes. Conclusions: Moderate physical activity appears to be associated with lower depersonalization and higher personal accomplishment in teachers, whereas body image does not play a central role. These associations were consistent across men and women. These findings support a multidimensional perspective of teacher well-being and suggest that physical activity should be considered alongside occupational factors when investigating burnout in teachers. However, the cross-sectional design precludes conclusions regarding causal relationships.