Roughly 1 in 5 U.S. adolescents experienced depression between 2021 and 2023, and those teens were significantly more likely to use substances including alcohol, marijuana, and opioids, according to research published in the Journal of Medicine, Surgery and Public Health.
The study was led by Andrew Yockey, an assistant professor of public health at the University of Mississippi, and graduate student Aminul Apu.
What the Research Found
Drawing on data from the National Survey on Drug Use and Health, the researchers found that alcohol and marijuana are the most commonly used substances among youth, with tobacco, inhalants and opioids less prevalent. About 20% of youth reported at least one major depressive episode in the prior year.
The connection isn’t coincidental. For some adolescents, substance use may represent a form of self-medication, a way of responding to emotional pain or hormonal changes, researchers noted. That distinction matters enormously for how treatment is approached.
This finding reinforces what clinicians practicing dual diagnosis or co-occurring disorder treatment have long observed: addressing drug use without treating the underlying mental health condition rarely produces lasting results.
High-Risk Populations for Teen Substance Use
The study identified several populations at elevated risk. Rural youth face particular challenges due to limited access to adolescent mental health resources.
Teen girls are roughly three times as likely to report depression. And non-Hispanic white youth showed the highest rates of marijuana, inhalant, and tobacco use.
Resources for adolescents remain insufficient despite growing public awareness of mental health challenges, Yockey said, a gap that is especially acute in rural communities.
For families in underserved areas, this highlights the importance of seeking out rehab centers and mental health treatment programs that specifically offer adolescent services and telehealth options.
Why Integrated Mental Health Treatment Matters
The researchers argue that a more effective approach involves looking for underlying causes of substance use rather than treating it primarily as a behavioral or conduct issue. Early, targeted intervention, especially for the highest-risk populations, is key, the study concludes.
Some substances, including alcohol, can worsen depression symptoms, creating a reinforcing cycle that makes intervention all the more important.
Addiction treatment programs that integrate mental health treatment, including cognitive behavioral therapy (CBT), trauma-informed care, and medication management, are particularly well-suited for adolescents showing signs of both depression and substance use.
Ongoing Research on Methamphetamine and Suicide Risk
The Ole Miss team’s work doesn’t stop here. Yockey is now partnering with the University of Mississippi Medical Center on a National Institutes of Health-funded study examining the relationship between methamphetamine use and suicidal ideation.
In Mississippi, methamphetamine use rose nearly 150% between 2015 and 2019, and suicide is the third-leading cause of death among young adults in the state.
Yockey believes the relationship is bi-directional, methamphetamine use may increase suicidal risk, and suicidal ideation may increase stimulant use, but rigorous research documenting that link is still lacking.
What This Means for Treatment Seekers
If you’re researching addiction treatment for a teenager, this study underscores the importance of finding a program that screens for and treats co-occurring depression, not just substance use.
Look for facilities that offer integrated mental health treatment, evidence-based therapies, and adolescent-specific programming. Asking a prospective rehab center how it handles dual diagnosis is one of the most important questions a family can ask.
Finding the Right Rehab
If your teen is struggling with substance use and depression, integrated addiction treatment that addresses both conditions simultaneously gives the best chance at long-term recovery. When comparing rehab centers, ask specifically about:
- Co-occurring mental health disorder treatment
- Adolescent-focused levels of care
- Evidence-based therapies such as CBT and motivational interviewing
- Insurance coverage for mental health treatment alongside addiction treatment
Rehab.com’s directory includes thousands of verified treatment centers across the country, including programs that specialize in adolescent and dual diagnosis care. Call
800-985-8516
( 
Sponsored Helpline )
to speak with a treatment advisor.
