完整原文
Social media has fundamentally reshaped adolescent mental health, presenting both unprecedented opportunities for connection and significant psychological risks. On the positive side, these platforms foster a vital sense of community and self-expression, enabling teenagers to access peer support and explore their identities in safe, like-minded digital spaces. Conversely, excessive screen time often fuels detrimental social comparison and cyberbullying, which can severely erode self-esteem and trigger anxiety or depressive symptoms among vulnerable users. While digital connectivity can undeniably bridge geographical divides, it must be consciously balanced with offline interactions and parental guidance to prevent emotional isolation and screen addiction. Ultimately, navigating this digital landscape requires a collaborative approach that maximizes psychological well-being while proactively mitigating inherent risks.