Social Media and Mental Health: A Review of Positive and Negative Outcomes Across Different Age Groups

The impact of social media on mental health remains a complex and widely debated topic, with research highlighting both positive and negative effects. This review synthesizes findings from multiple studies to provide a comprehensive understanding of how social media influences mental health across different demographic groups that are adolescents, young adults and older adults Studies on adolescents and young adults indicate that excessive social media use is associated with higher rates of depression, anxiety, body dissatisfaction, and negative emotional experiences. Key factors contributing to these negative outcomes include cyberbullying, social comparison, and the fear of missing out (FoMO). Research further suggests that girls are more affected than boys, with social media reinforcing unrealistic beauty standards and increasing body dissatisfaction. Neurological studies show that negative peer feedback on social media activates brain regions linked to social rejection and emotional distress, making adolescents particularly vulnerable. Conversely, studies on older adults highlight the benefits of social media in reducing loneliness, improving social connectedness, and enhancing overall well-being. Research suggests that social media use helps older individuals maintain relationships and access social support, contributing to higher life satisfaction and lower depression levels. However, it is also noted that social media cannot fully replace face-to-face interactions, which remain essential for emotional fulfillment. The effects of social media on well-being are mixed, with passive use (scrolling and browsing) having more harmful effects than active use (posting and interacting). Social media appears to be beneficial when used mindfully and in moderation, particularly when it facilitates social support, self-expression, and meaningful engagement. Future studies should examine the effects of social media on pre-teens and middle-aged individuals, as research on these age groups remains limited. Moreover, current research is primarily centered on Facebook and Instagram, while research on YouTube, WhatsApp, and Snapchat, which are among the leading social media platforms with the most active users, is lacking.