Background: Social media can significantly impact body image perception among adolescents. Objective: This study examines how exposure to fitspiration content relates to body esteem, with a focus on gender differences and BMI. Methods: A cross-sectional online survey was conducted among 211 participants using validated instruments (Body Esteem Scale, A. Sobczak’s silhouette scale). Data were analyzed using descriptive statistics and chi-square tests. Results: Exposure to athletic images decreased self-esteem in 37% of participants, particularly among women (p = 0.004). Gender significantly influenced the tendency to compare oneself with athletic individuals (p = 0.02). BMI was not significantly associated with body image perception (p = 0.05). Conclusions: Gender-specific patterns in social media-related body image perception highlight the need for targeted interventions to mitigate negative impacts among young adults.

(1) Background: The literature emphasizes the role of many factors influencing the onset of eating disorders (EDs) and their mutual influence on each other. Therefore, this study aimed to evaluate and compare the prevalence of orthorexic behaviors in groups of health-related and non-health-related students in terms of their differential health behaviors—diet and physical activity levels. (2) The study included 300 individuals representing two equal groups of fields of study, which for the study were called the health-related field (HRF) and the non-health-related field (NRF). (3) Results: Based on the results of the dietary assessment, it was found that the best dietary model was characterized by the HRF group; in this group, 97.2% of students were characterized by a very good and good dietary mode. The NRF group, on the other hand, was dominated by a sufficient dietary mode for 64.4% of all cases in this group (94 people), while the dietary model marked as “good” was less popular, at 24.6% of this group (36 people). (4) Conclusions: Based on the cited self-research and information from the literature, it can be concluded that the problem of orthorexia is still a new issue at the level of social sciences, medical sciences, and health sciences. The psychometric tools used in this study allowed us to demonstrate the prevalence of the aforementioned eating disorders in the sample groups of students.

Older adults show lower physical activity. These changes altogether promote the development of overweight, obesity, and other chronic diseases. These factors substantially influence the quality of life and self-esteem of older adults. This phenomenon is especially visible after the lockdown caused by the COVID-19 pandemic. Objectives: Our study aimed to evaluate the effect of a 12-week reductive diet and a 12-week physical activity plan for older adults on the global self-esteem of lifestyle in 60–70-year-old women. Materials and methods: Our participants were 600 women with increased body mass (BMI > 25 kg/m²) aged 60–70 years. After the initial evaluation, the participants were randomly divided into three groups: CG—control group (n = 200); DI—dietary group (n = 200) that committed to a 12-week reductive diet; PA—physical activity group (n = 200) that committed to a 12-week physical activity plan. The global self-esteem score (using the SES Rosenberg scale) and the anthropometric measurements were collected before and after the 12-week study. In the statistical analysis of data, the significance level was assumed to be 0.05. Results: The global self-esteem score for all groups before the study started was 30–31 points, which corresponded to average self-esteem. After a 12-week dietary or physical activity intervention, the score in the DI group was 33, which corresponded with high self-esteem. In the CG group, the self-esteem score remained unchanged (30 points). The average body mass loss was 0.5 kg/m² for CG, 1.92 kg/m² for DI, and 1.10 kg/m² for the PA group. The average waist–hip ratio (WHR) change for CG, DI, and PA was 1 cm, 1 cm, and 2 cm, respectively. A decrease in body mass and body composition indicators (BMI and WHR) corresponded to participants’ global self-esteem increase (p < 0.05); the greater the decrease noted for BMI and WHR, the greater the global self-esteem score that was achieved. In the CG group, a negative correlation between global self-esteem and BMI value (p < 0.05) was observed. Conclusions: A 12-week reductive diet and a 12-week regular physical activity plan lowered participants’ body mass. Adipose tissue content was reflected by decreased BMI and WHR indicators of participants from the DI and PA groups and was accompanied by higher global self-esteem scores.