This study aims to analyze the relationship between the level of knowledge about the covid-19 pandemic and compliance with wearing masks in residents of RT 02 RW 01 Sumberberas Muncar Village Banyuwangi in 2020. This study is a quantitative study with a cross- sectional approach, data analysis using the Kendall's tau correlation test. The population in this study was 40 respondents. The research sample was taken with a total sample of 40 respondents. The independent variable in this study is the level of community knowledge and the dependent variable is compliance with using masks. Based on the results of the study, there were 25 respondents who had less knowledge and did not comply, there were no respondents who had less knowledge and were obedient, there were 5 respondents who had good knowledge and were not obedient and 10 respondents who had good knowledge and were obedient. . The results of the Kendall's Tau correlation test output obtained a significance value between knowledge and compliance of 0.000 <0.05. So it can be concluded that there is a significant relationship between knowledge and compliance.

Posyandu is an important tool in the community that supports efforts to achieve nutri-tionally aware families (KADARZI), helps reduce infant mortality and birth, and accelerates the acceptance of norms of happy and prosperous small families. However, in reality many posyandu members in the community themselves do not use posyandu to monitor their chil-dren's growth and development on the grounds of being busy working or not being able to bring their toddlers to the posyandu and lack of knowledge about the importance of monitoring growth and development in children under five. So a study was conducted aimed at finding out the relationship between the participation of mothers of children under five to posyandu with the weight gain of children under five. This research is observational with cross sectional ap-proach. Data on the participation of mothers of children under five to the posyandu and the weight of children under five is taken directly from the records of KMS and Posyandu Infor-mation Systems (SIP) for children under five in the posyandu. Analysis of the data used is the Chi-Square test. There is a relationship between the participation of mothers of children under five to the posyandu with the weight gain of children under five with a P value of 0.005. Where as seen from the last six months the participation of mothers of toddlers who actively came to the posyandu was 93.9% and those who were not active 61%, the weight of toddlers who rose by 78.8% and those who did not increase by 21.2%, there was a relationship between partici-pation to posyandu with weight gain. The results of this study can be information and input for PUSKESMAS Sumberberas Muncar Banyuwangi East Java village to provide guidance on the benefits of active participation of children under five to the Posyandu and can be used as a ref-erence to develop further research related to the participation of mothers under five to Posyan-du with weight gain under five. .

This study aims to analyze the Body Mass Index with Pre-elderly Blood Pressure in RT 02 RW 01 Sumberberas Village Banyuwangi in 2021. This study is a quantitative study with a cross-sectional approach, data analysis using the chi-square test. The population in this study was pre-elderly residents in RT 1 RW 2 Sumberberas Village, Banyuwangi. The research sample was taken by purposive sampling, namely 30 respondents. The independent variable in this study is body mass index (BMI) and the dependent variable is blood pressure. Based on the results of the study obtained data from 30 pre-elderly respondents with a BMI of less than 2 people showed all normal blood pressure, while with a normal BMI there were 13 people where 1 of them had normal blood pressure and 8 of them were in the prehypertension category and 4 of them were in the prehypertension category. Hypertension level I and II. Then the excess BMI / overweight / obesity as many as 15 people of which 9 people fall into the pre-hypertension category and 6 others fall into the category of Hypertension level I and II. significant positive relationship between BMI (Body Mass Index) and blood pressure. This is also supported by the descriptive results of the Crostab table which found that respondents with excess body weight tend to have pre-hypertension and grade I and II hypertension.