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Green tea (Camellia sinensis) is a plant known by the public as a drink that is quite economical and easy to obtain. Green tea contains polyphenol compounds that can lower cholesterol levels in the blood. Excessive cholesterol (Hypercholesterolemia) is a very feared threat because it is one of the causes of coronary heart disease and stroke. High cholesterol has become a common disease for the elderly, the increase in the number of elderly people must be followed by an increase in the degree of well-being, one of which is in the health sector. The rise of lifestyle and the effects of unhealthy eating behaviors have an impact on increasing cholesterol levels. The purpose of this activity is to reduce the rate of hypercholesterolonemia in the elderly through the use of the consumption of green tea brew on cholesterol levels in the elderly in Sumber Cirebon District. The method in this activity is to conduct counseling, observer of respondents and experiments by giving green tea brew then followed by checking cholesterol levels. The result of this activity is that green tea is able to lower cholesterol levels. The conclusion is that the infusion of green can provide benefits for the community, especially the elderly, in improving health and reducing the risk of cardiovascular disease.

The elderly are a group of people who are vulnerable to degenerative diseases such as hypertension, diabetes mellitus, and others. The causes include a lack of knowledge about healthy diet and the lack of health checks. The purpose of this community service activity is to improve the quality of life of the elderly in Kelurahan Utama of South Cimahi by socializing healthy diets and conducting health checks. Media used for healthy diet counseling are power points, videos, and posters. Health examinations conducted include measurements of body mass index, blood pressure, blood glucose levels, triglycerides, total cholesterol, and uric acid. The results of the health examination showed quite a lot of elderly people who suffer from degenerative diseases. Through this activity, the elderly in Kelurahan Utama of South Cimahi gained knowledge about healthy diet in order to avoid various diseases and know the disease that is being experienced so that they can immediately undergo proper treatment.

Laboratory examination is very important to diagnose a disease, one of which is the examination of total cholesterol to diagnose heart disease, this examination uses serum samples obtained from blood clots that have been centrifuged, various variations of freezing are carried out to accelerate the examination results ranging from blood that is immediately centrifuged and blood that is allowed to freeze for 5-10 minutes, while according to PERMENKES No. 43 of 2013 to get blood serum allowed to freeze for 20-30 minutes at room temperature which is then centrifuged. This study aims to determine the results of differences in total cholesterol levels in blood samples immediately centrifuged and blood samples that are allowed to freeze at room temperature 260C for 10 and 20 minutes before centrifugation. The method used in this study is an experimental research method, this examination uses the CHOD-PAP enzymatic colorimetric method. For data analysis using the SPSS program using the one way anova test. This study was conducted on 15 respondents obtained from students of An Nasher Health Analyst Academy Cirebon randomly. The results of the examination of total cholesterol levels in blood samples that were immediately centrifuged had an average value of 205.8 mg/dl with the lowest value of 112 mg/dl and the highest value of 314 mg/dl, while in blood samples that were allowed to freeze for 10 minutes had an average value of 188 mg/dl with the lowest value of 144 mg/dl and the highest value of 278 mg/dl, and in blood samples that were allowed to freeze for 20 minutes had an average value of 142.6 mg/dl with the lowest value of 95 mg/dl and the highest value of 186 mg/dl. The results of this study indicate that there is a significant difference in total cholesterol levels in blood samples immediately centrifuged and blood samples left to freeze at room temperature 260C for 10 and 20 minutes before centrifugation.