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A time of both disorientation and discovery, adolescence describes the teenage years between 13 and 19. With increasing rates of early-onset puberty, the preteen or "tween" years (ages 9-12) may also qualify. No longer children but not yet adults, adolescents struggle with issues of independence and self-identity. There may be experimentation with drugs and alcohol or sexuality. Peer groups and external appearance tend to increase in importance.








