A major new study has raised serious concerns about teen drug use and mental health, finding that young people who use drugs or binge drink are far more likely to suffer psychological distress. They are also more likely to have considered or attempted suicide, according to research from the UCLA Center for Health Policy Research (CHPR).
The study draws on data from nearly 3,000 interviews conducted as part of the 2022, 2023 and 2024 California Health Interview Surveys. It found that 9% of California adolescents aged 12 to 17 currently use one or more substances. That category covers marijuana or THC products, binge drinking, e-cigarettes and cigarettes. Current use was defined as any use within the past month.
Teen Drug Use and Mental Health: The Key Findings
The mental health findings were striking. Among young people who currently use substances, 46% had experienced serious psychological distress in the past year. Among those who do not use substances, that figure was 27%. The study defined psychological distress broadly. It included serious diagnosable mental health conditions as well as clinically relevant distress that would warrant professional intervention.
Existing research has long shown that early or heavy substance use in young people can harm brain development. It can also carry lasting consequences for mental wellbeing. This study adds to that evidence. It shows how sharply the risk intensifies when substance use and psychological distress occur together.
The Link Between Substance Use in Young People and Suicide Risk
The connection between teen drug use and mental health deterioration extended to suicidal thoughts. That was among the most alarming findings in the report. Across California, 10% of adolescents said they had seriously considered or attempted suicide in the past year.
When substance use and psychological distress occurred together, the figures rose sharply. Nearly half, 47%, of adolescents with both psychological distress and current substance use reported suicidal thoughts or attempts. Among those with distress but no substance use, that figure was 24%.
Even among young people without psychological distress, substance use in young people still elevated risk. Eight per cent of substance-using adolescents without distress reported suicidal thoughts or attempts. That was four times the rate among non-using peers at 2%. Young people who had ever used drugs or alcohol were more than three times as likely to report suicidal thoughts compared with those who had never used substances (20% versus 6%).
Normalisation and the Need for Prevention
Lead researcher Imelda Padilla-Frausto, a research scientist at UCLA CHPR, pointed to the role of popular culture. Young people face constant exposure to messaging that glamorises drinking and drug use. That includes advertising, streaming platforms, music and social media.
She argued that prevention must be treated as a priority. The report calls for targeted early intervention for young people identified as high risk. It also recommends co-locating mental health and substance use services to reduce barriers to care. Making treatment more youth-centred and accessible was highlighted as essential.
Padilla-Frausto also called for stronger enforcement of existing regulations. Those rules were designed to keep substances out of reach of young people. Enforcement, she argued, has not kept pace with need.
Why Acting Early Matters
The relationship between teen drug use and mental health outcomes makes the case for early action hard to ignore. When substance use goes unaddressed in young people, the consequences can be severe and long-lasting. A young person using drugs or alcohol today is at far greater risk of serious mental health problems tomorrow.
The UCLA findings reinforce what specialists in this field have long maintained. Waiting until problems become acute is costly. Reaching young people before patterns become entrenched is where the greatest difference can be made.
(Source: WRD News)