What is a psychological sign of drug dependency in youth?

The sign of decreased motivation for normal activities is a psychological indicator of drug dependency in youth. This reduced interest or motivation can manifest as a loss of enthusiasm for hobbies, school, or social engagement that they once enjoyed. Such a shift often indicates that the individual may be prioritizing substance use over previously rewarding activities, which is a common characteristic seen in those struggling with dependency.

In contrast, the other options do not align with typical signs of drug dependency. Increased focus on academics, enhanced physical fitness, and positive peer interactions are generally associated with healthy behaviors and interests that contradict the disengagement or apathy often seen in those facing substance misuse challenges.