Dental health problems and a lack of handwashing with soap remain issues among elementary school students in Desa Sojomerto. This study implemented a Toothbrushing and Handwashing with Soap Movement program to address these problems. Through a series of educational activities and hands-on practice, the program aimed to change students' behaviors towards cleanliness and health. The research results showed a significant increase in toothbrushing frequency, correct handwashing techniques, and students' knowledge of the importance of hygiene.

Opportunities and challenges faced in developing MSMEs definitely exist in the MSME development process. Pati Angkrik as a local tuber food offers significant potential opportunities in improving community welfare. Pati Angkrik, which belongs to the group of tubers, can be processed into various processed food and beverage products. And the challenges faced by Pati Angkrik MSMEs include limited raw materials, limited human resources, time requirements, and ineffective marketing access, making the development of Pati Angkrik MSMEs also experiencing obstacles. Triharjo Village, Gemuh District, Kendal Regency, has the Pati Angkrik micro and small and medium enterprise (MSME) as one of the community businesses in Triharjo Village. However, there are challenges and opportunities it faces. The aim of this service is to provide MSME development to the challenges and opportunities faced by Pati Angkrik MSME actors in Triharjo Village, so that they can help Angkrik starch MSME actors by replacing more modern packaging and designing packaging for Angkrik starch MSME products. This devotion uses method Participatory Action Research is a method of raising public awareness regarding potential and existing problems and encouraging community participation in change activities that will be implemented. This service has succeeded in providing development for pati angkrik MSMEs by changing product packaging to modern packaging and creating packaging designs, so that the development of pati angkrik MSMEs can benefit the angkrik starch MSMEs in Triharjo Village.

The decline in physical and mental abilities is an inevitable sign of the aging phase. Maintaining health in old age involves not only physical activity and a balanced diet but also utilizing natural ingredients that can support overall body health. One such natural ingredient with significant potential to support health in old age is butterfly pea flower (Clitoria ternatea), known for its numerous health benefits, including stress reduction and cognitive function support. To raise awareness of the importance of preparing for healthy aging, the KKN MIT-18 Posko 57 Sojomerto Village team organized a seminar and workshop titled "Towards Healthy Aging and Knowing the Benefits of Butterfly Pea Flower." This event involved PKK cadres from Sojomerto Village and aimed to educate the community about the benefits of butterfly pea tea. The results of this activity showed an increased understanding among the community regarding the importance of maintaining physical and mental health in old age, as well as their enthusiasm for utilizing butterfly pea flower as a natural solution to support their health.