The paper titled The TikTok Phenomenon and Its Impact on Youth Behavior explores how TikTok, one of the most popular social media platforms, influences young users, particularly in terms of their behavior, mental health, and interpersonal relationships. The paper explains how TikTok, with its short video clips, attracts young people and affects their neurological functions by creating a sense of satisfaction due to increased dopamine levels. However, this mechanism often leads to addictive behavior, reduced concentration, and problems with critical thinking. In addition to neurological effects, the paper focuses on the mental health of young users. Excessive use of TikTok can lead to symptoms of anxiety, depression, and low self-esteem, especially due to comparisons with unrealistic standards of beauty and success that the platform frequently promotes. It also highlights the negative impact on sleep quality due to excessive screen time and exposure to blue light. However, the paper also recognizes positive aspects of TikTok. The platform encourages creativity, allows for self-expression, and can be useful for educational purposes, such as quickly learning new skills or sharing information in an engaging way. In conclusion, the paper emphasizes that TikTok has both negative and positive potential effects on young people, highlighting the importance of responsible social media use to maximize benefits and minimize negative impacts on behavior and mental health.