Adolescents are particularly vulnerable to substance use due to behavioral risk factors such as impulsivity, peer pressure, and a tendency toward risk-taking. The adolescent brain, still developing its prefrontal cortex, struggles with impulse control and long-term decision-making. Social factors, including peer groups that normalize drug or alcohol use, further increase susceptibility. Early exposure to stress, trauma, or family dysfunction also plays a role in initiating substance use. Prevention strategies must target these risk factors through education, fostering healthy coping mechanisms, and strengthening family and community support systems. School-based programs and mentorship opportunities can provide adolescents with the tools to resist peer pressure and make informed decisions. By addressing these behavioral risks early, interventions can reduce the likelihood of substance use and promote healthier developmental outcomes during this critical life stage.