This research aims to explore more deeply the phenomenon of slang use among UINSU Public Health students and its impact on social dynamics and the development of their identity. Through a qualitative approach involving in-depth interviews and participant observation, this research seeks to understand how slang plays a role in forming social bonds, creating a sense of belonging to a group, and influencing the way students interact with each other. Preliminary findings show that slang not only functions as a communication tool, but also as a symbol of identity and a means of expressing oneself. However, on the other hand, the use of slang that is too intense can blur the boundaries between formality and informality, thus potentially hampering the learning process and effective academic communication. Therefore, this research highlights the importance of balancing the use of slang with good and correct language rules, so that students can communicate effectively in various contexts without sacrificing their group identity.

Blood donation is the process of taking blood from someone voluntarily to be stored in a blood bank to be used for blood transfusions. This research aims to provide education to the public that blood donation has many benefits in the hope that there will be awareness of voluntary blood donation. The type of research carried out was descriptive qualitative research with data collection carried out by means of interviews, observation and documentation. The results of this research are that blood donation has a good effect on body health. Apart from that, the benefit of donating blood is that it helps reduce the risk of heart attacks and other heart problems and if blood donation is done regularly every three months, the body will produce new blood cells. The conclusion of this article is that blood donation has high effectiveness for health.