The application of proper cough etiquette is an essential part of Clean and Healthy Living Behavior (PHBS) and serves as a preventive measure in reducing the transmission of respiratory infectious diseases from an early age. Health education for young children is crucial, as this stage represents the formative period where foundational habits are developed, potentially influencing long-term individual and environmental health. This community service activity was conducted on May 9, 2025, at Stella Maris Kindergarten in Tangerang City, involving 29 Nursery group children. The main objective of the program was to enhance the knowledge and skills of early childhood students in practicing correct cough etiquette and to instill healthy behaviors that they can apply in their daily lives at home and school. The implementation of the activity followed the POAC approach (Planning, Organizing, Actuating, Controlling) in a structured manner. Activities included storytelling (using engaging illustrations), screening of age-appropriate educational videos, practical simulations of cough etiquette, and fun, interactive games. These methods were designed to encourage active participation and ensure that children could understand and retain the health messages through enjoyable learning experiences. The results showed a notable improvement in the children's understanding and active involvement in practicing healthy coughing techniques, such as covering their mouths with a tissue or the inside of their elbows when coughing. Visual education combined with hands-on practice proved to be highly effective in conveying health messages to young children. The teachers responded positively to the program, emphasizing that the approach used was appropriate and should be widely implemented in other early childhood education institutions. They recognized it as a valuable promotive effort and a long-term health investment for children, laying the groundwork for healthier habits and environments in the future.

Stress is a common mental health problem among medical students due to academic demands. Physical activity is known to reduce stress through physiological and psychological mechanisms. This study aims to examine the relationship between physical activity and stress levels among medical students at Tarumanagara University class of 2022–2023. This research employed an analytical cross-sectional design. A total of 123 respondents who met the inclusion criteria completed the physical activity (Baecke Questionnaire) and stress level (Perceived Stress Scale-10) questionnaires. Bivariate analysis was conducted using the chi-square test. The results showed that 95.1% of respondents experienced moderate to severe stress, while only 15.4% regularly exercised. A significant relationship was found between physical activity and stress level (p = 0.000). The odds ratio of 13.600 indicates that students who exercised regularly were 13 times more likely to experience lower stress compared to those who did not. This study highlights the role of regular physical activity as a protective factor in managing stress among medical students

Non-communicable diseases (NCDs) have become the leading cause of death in Indonesia, particularly among young adults, with an increasing incidence rate. Technological advancements, lifestyle changes, and environmental factors have contributed to the rising prevalence of NCDs, especially among the younger generation. In light of this, it is essential to implement prevention through health screening and education on healthy lifestyles, particularly among young adults. This community service activity was conducted on December 20 and 21, 2024, with the aim of raising awareness among young adults in West Jakarta about the importance of adopting a healthy lifestyle through health screenings and the promotion of an active lifestyle, including education on nutrition status, physical activity, quality sleep, and the dangers of smoking, especially the use of e-cigarettes. The results of the activity showed that the majority of participants experienced sleep difficulties, and most did not smoke, although some used e-cigarettes. The results of nutrition status measurements also indicated that most participants fell into the obese category. Participants' physical activity levels were relatively low, with many engaging in less than 30 minutes of exercise per session and struggling to find time for regular physical activity. Education and promotion of healthy lifestyles need to be continuously improved to prevent NCDs among young adults, with a focus on improving eating habits, increasing physical activity, and managing stress.

Sarcopenia is a progressive degenerative condition characterized by a decrease in muscle mass, strength, and musculoskeletal function, affecting the quality of life of the elderly. This activity aims to screen for vitamin D and educate the elderly about sarcopenia. Community service activities were carried out in nursing homes, involving education and screening of vitamin D levels. The results showed that the majority of respondents were women (79.6%) with an average age of 74.05 years. Most respondents experienced vitamin D deficiency, with 87.1% deficient, 3.2% adequate, and only 9.7% having good levels, with it being found that more women experienced vitamin D deficiency than men. Education regarding the importance of vitamin D and preventing sarcopenia is provided through outreach sessions and poster media. This activity emphasizes the importance of early detection and comprehensive intervention including physical exercise, proper nutritional intake, and lifestyle modification to prevent sarcopenia and improve the quality of life of the elderly. Community-based interventions are needed to address vitamin D deficiency and promote musculoskeletal health in the aging population.

Teenagers with inadequate knowledge about cosmetics are more likely to use harmful or unlawful goods. Students at SMA Kalam Kudus II Jakarta have never received instruction on the selection and application of beauty products. This counseling session is anticipated to raise the SMA Kalam Kudus II Jakarta students' awareness of the importance of utilizing adolescent-appropriate and safe skin care products and how to select them. This counseling procedure is conducted offline for counseling participants at Kalam Kudus II Jakarta High School. The given counseling material addresses a variety of adolescent skin conditions, as well as the many types of skincare ingredients and how to choose the appropriate one based on the adolescent's skin. Compared to the Pre-test, which was administered prior to the presenter's explanation of the topic, there was an increase in knowledge on the Post-test. Therefore, it can be inferred that participants gained knowledge from this activity's material and conversations, particularly in regards to the skincare material offered.