Substance Use Prevention

National surveys paint a mostly hopeful picture for teens. In the 2025 Monitoring the Future survey of about 23,700 students, 91% of 8th graders, 82% of 10th graders, and 66% of 12th graders said they had not used marijuana, alcohol, or nicotine in the past month. Use of drugs like heroin and cocaine stayed around or below 1%.

Use rises with age. Among 12th graders, 41% drank alcohol, 26% used cannabis, and 20% vaped nicotine in the past year. In 2024, 35.0% of young adults ages 18-25 used marijuana in the past year and 26.7% binge drank in the past month. On campus, one in four full-time college students binge drank in the past month.

The CDC's 2023 Youth Risk Behavior Survey found that 22% of high school students drank alcohol and 17% used marijuana in the past 30 days, and 12% had ever misused prescription opioids.

Young people today face products their parents never saw. Cannabis is far stronger than in the 1990s, dispensary products can top 40% THC, and edibles and vapes make use easy to hide. High-potency cannabis (above about 15% THC) is linked with more dependence, psychosis, and thinking problems in people ages 14-25.

Many teens meet drugs through friends or social media. Counterfeit pills made to look like oxycodone or Xanax are a serious threat because they may contain fentanyl, which cannot be seen, smelled, or tasted. From 2019 to 2021, overdose deaths among U.S. 10-19-year-olds more than doubled, and about 4 in 10 of those who died had signs of a mental health condition.

Some young people use substances to cope with stress, anxiety, loneliness, or trauma. Others are curious or want to fit in. Knowing the reason helps adults respond with support rather than only punishment.

The brain keeps developing into the mid-20s. Reward areas deep in the brain (such as the ventral striatum) become very active in adolescence, especially around peers, while the prefrontal cortex, which helps with planning, impulse control, and weighing consequences, matures later. This gap helps explain why teens seek excitement and are strongly influenced by friends.

Brain imaging studies find that youth who use substances often show stronger responses to social rewards and different responses to social stress. Substances that flood the reward system with dopamine can teach the developing brain to crave them, and starting earlier raises the chance of later addiction. For cannabis, earlier and more frequent use is linked with higher risk of psychosis and schizophrenia and with problems in memory and learning.

No single cause predicts who will develop a substance problem. Prevention science looks at risk factors, which make problems more likely, and protective factors, which buffer against them. Risk and protective factors show up in the individual, the family, the school, peers, and the community, and they add up over time.

Effective prevention both lowers risk and strengthens protection. Because early problems like aggression, school failure, or family conflict can snowball, intervening early is usually more effective than waiting.

The Institute of Medicine continuum sorts prevention by who it reaches. Universal programs serve everyone (a whole grade or school). Selective programs serve groups at higher risk (for example, youth whose parents misuse substances). Indicated programs serve individuals already showing early signs, such as heavy drinking.

SAMHSA's Strategic Prevention Framework (SPF) gives communities a five-step, data-driven process: assess needs, build capacity, plan, implement, and evaluate. Two principles run through every step: cultural competence and sustainability. Community systems such as Communities That Care and PROSPER use this kind of process to choose proven programs.

Programs that work teach skills, not just facts. LifeSkills Training (a Blueprints Model Plus program) builds self-management, social, and drug-refusal skills across grades 6-9 and has reduced tobacco, alcohol, marijuana, and illicit drug use in long-term follow-ups; a newer version that mixes e-learning with classroom sessions also reduced use. Programs that add emotional regulation, coping, and help-seeking skills cut adolescent alcohol problems and binge drinking in a 2026 meta-analysis.

Family and community programs also have strong records. Strengthening Families 10-14 slowed growth in alcohol, cigarette, and marijuana use over 12 years, and Communities That Care lowered alcohol and drug use into young adulthood. For college students, brief motivational interventions like BASICS reduce drinking; a large data pooling of 19 trials found about 8% fewer drinks through 6 months, and BASICS is rated Model Plus by Blueprints.

Some popular approaches have little or no effect. Scare tactics, exaggerated claims, and graphic warnings can backfire, because teens stop trusting the messenger. One-time assemblies or single guest speakers are too brief to change behavior. Police-delivered programs modeled on D.A.R.E. have a weak track record: when a D.A.R.E.-keepin' it REAL version was tested with more than 4,000 Brazilian students, it had no effect on drug use, no matter how faithfully it was taught.

Programs that only share information, or that put high-risk youth together in groups without strong structure, can also fall short. In school vaping programs, a few interventions actually increased use. Choosing programs with evidence ratings and delivering them as designed matters.

Community Reinforcement and Family Training (CRAFT) teaches parents, partners, and other loved ones how to help someone who is not ready for treatment. Instead of nagging, pleading, or confrontation, families learn to reward sober behavior, let natural consequences happen, communicate in positive ways, look after their own well-being, and invite the person into treatment at good moments. CRAFT is well known for increasing treatment entry.

Parents of young adults in a Swedish CRAFT trial said the communication and positive-reinforcement sessions helped most, and that conflicts turned into support. Online versions are being tested, and early results for families of people with opioid problems look promising.

U.S. overdose deaths are falling: CDC estimates about 69,973 deaths in 2025, almost 14% fewer than in 2024. Still, illegally made fentanyl is up to 50 times stronger than heroin and can be pressed into pills that look real. A single counterfeit pill can be deadly for someone who has never used opioids.

Naloxone (Narcan) reverses opioid overdoses. The FDA approved it for over-the-counter sale in March 2023, so it can be bought without a prescription. Even so, many teens still have trouble getting it because of cost, pharmacy confusion, and stigma. Most states have Good Samaritan laws that may protect the person who calls for help, and the person overdosing, from some criminal penalties.

Harm reduction meets people where they are to keep them alive and healthier: carrying naloxone, never using alone, testing drugs, and avoiding mixing substances. For young people who are not ready to stop, safer-use messages can sit alongside a clear message that not using is safest.

Recovery is possible and common. Collegiate recovery programs give students in recovery a peer community, meetings, and sober activities on campus. A 2026 review found their strengths are peer-driven, recovery-supportive cultures and links to student success, while unstable funding and stigma threaten them. The Association of Recovery in Higher Education lists programs nationwide.