The widespread use of social networks has significantly influenced the psychological development and well-being of adolescents. This paper examines the key psychological characteristics of this impact, including both positive and negative effects. Social networks serve as platforms for identity exploration, peer interaction, and self-expression, offering opportunities for personal growth and social connection. However, they also expose adolescents to risks such as cyberbullying, social comparison, and excessive screen time, which can contribute to anxiety, depression, and diminished self-esteem. The phenomenon of Fear of Missing Out (FOMO) and the constant need for validation further intensify the emotional and psychological challenges faced by adolescents. Additionally, the interplay between social media addiction and its effects on attention span and emotional regulation is analyzed. By understanding these dynamics, this study aims to highlight the importance of fostering healthy digital habits and promoting resilience among adolescents in the context of social media use.