Impact of Social Media on Teenagers' Health

Abstract

Social media has become an important part of adolescent life, providing opportunities for communication, learning, entertainment, identity development, and social support. At the same time, frequent or problematic use may be associated with sleep disruption, anxiety, depressive symptoms, cyberbullying, body-image concerns, unhealthy eating, reduced physical activity, and exposure to health-risk behaviors. This paper reviews research on the impact of social media on teenagers' health, with particular attention to mental health, sleep, physical health, social relationships, and risky behaviors. Evidence from systematic reviews, meta-analyses, and public health guidance indicates that the relationship is complex rather than universally harmful: outcomes depend on the type of content, manner of use, duration, individual vulnerability, social context, and platform design. Recent evidence also suggests that problematic use is more consistently associated with adverse outcomes than simple frequency of use. The paper discusses positive and negative effects, major risk factors, preventive strategies, and research gaps. It concludes that balanced use, digital literacy, supportive family and school environments, safer platform design, and continued research are needed to protect adolescent health while retaining the benefits of online social connection