# Substance Use on the Rise Among Gen Z in Their Early 20s | UCL News > **Author:** Benjamin Caplan, MD (ABFM Board Certified, MA Lic. #240562, NPI: 1962722637) > **Publisher:** CED Clinic (https://cedclinic.com) > **Canonical URL:** https://cedclinic.com/rising-substance-use-in-young-adults-gen-z-trends/ > **Published:** 2026-03-05T12:32:45-04:00 | **Last Modified / Clinically Audited:** 2026-09-28T12:00:46-04:00 > **Clinical Summary:** Explore rising substance use in young adults and its impact on Gen Z health. Learn about screening and intervention strategies for clinicians. --- ✦ New CED Clinical Relevance #45 Clinical Context Background information relevant to the evolving [cannabis medicine](https://cedclinic.com/essential-oils-industrial-hemp-antimicrobial-benefits/) landscape. ResearchMental HealthPolicySafety Why This Matters Clinicians need to understand emerging substance use patterns in Gen Z to screen appropriately and identify at-risk populations earlier in their medical encounters. Rising substance use in young adults increases the likelihood that primary care and mental health providers will encounter [cannabis and other drug use](https://cedclinic.com/cannabis-use-other-illicit-drugs-16-year-study/) during routine assessments, making current knowledge of risks and interventions clinically essential. Early detection and intervention in this age group can prevent escalation to dependence and address concurrent mental health conditions that often co-occur with increased substance use. Clinical Summary A longitudinal study from the UCL Centre for Longitudinal Studies tracking nearly 10,000 individuals born in a recent cohort found rising rates of substance use among Generation Z individuals in their early twenties, with notable increases in alcohol consumption and other drug use compared to previous generational patterns. This epidemiological finding is clinically significant because it suggests that younger patients presenting to primary care and mental health settings may have higher baseline risks for substance-related disorders and associated comorbidities. The trend toward earlier and more frequent substance use in this population has implications for preventive screening protocols and early intervention strategies, particularly given the potential for substance use to interfere with neurodevelopmental processes still occurring in the early twenties. Clinicians should consider these population-level trends when assessing risk factors and counseling young adult patients about cannabis and other drugs, as this generation may normalize polydrug use patterns differently than previous cohorts. Understanding that substance use prevalence is rising in Gen Z can inform more proactive screening and harm reduction discussions during routine visits with young adult patients. Dr. Caplan’s Take “What we’re seeing with Gen Z is a shift in the pattern of substance use rather than simply more use, and cannabis is often part of a polysubstance picture that includes alcohol and other drugs, which complicates both the clinical presentation and our ability to counsel young people on risk reduction. We need to move beyond asking ‘Are you using?’ to understanding the context of use, frequency, and whether patients are mixing substances, because that’s where the real medical consequences emerge.” Clinical Perspective While generational comparisons of substance use patterns can provide useful epidemiologic context, clinicians should recognize that cross-sectional prevalence data may reflect differences in reporting behaviors, access to substances, or diagnostic awareness rather than true increases in underlying pathology. The finding that cannabis and other substance use appears elevated in Gen Z requires careful interpretation, as changing social attitudes toward disclosure, evolving legal landscapes, and differences in how various age cohorts were assessed across time periods all represent significant confounders that complicate causal inference. Additionally, prevalence alone does not capture severity, dependence, or functional impairment, which are often the clinically salient dimensions driving intervention. For primary care providers and mental health specialists, these aggregate trends should prompt systematic screening for substance use in young adult patients, but clinical decision-making should focus on individual risk factors, comorbid psychiatric conditions, and functional consequences rather than generational stereotypes or isolated prevalence statistics. 💬 Join the Conversation Have a question about how this applies to your situation? [Ask Dr. Caplan →](https://benjamincaplan.com/ask-dr-caplan) Want to discuss this topic with other patients and caregivers? [Join the forum discussion →](https://cedclinic.com/interact/discussion-forums/) Have thoughts on this? 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Personal care that starts with listening and is guided by experience and ingenuity. Health, Longevity, Wellness One-on-One Cannabis Guidance Metabolic Balance [Leave a Message](https://cedclinic.com/contact/) [Metabolic Care](https://cedclinic.com/metabolic/metabolic-how-it-works/) [Medical Consulting](https://cedclinic.com/book/) [Cannabis Care](https://cedclinic.com/book/) [https://cedclinic.com/contact/](https://cedclinic.com/contact/) RELATED READING AT CED CLINIC Continue exploring the evidence [Substance use on the rise among Gen Z in their early 20s – Medical Xpress](https://cedclinic.com/substance-use-trends-gen-z-early-twenties/) An overview of increasing substance use trends in Gen Z, highlighting clinical implications and [public health](https://cedclinic.com/cannabis-mold-contamination-risks-recall-safety/) concerns. [Read More](https://cedclinic.com/substance-use-trends-gen-z-early-twenties/) [Cannabis caution as study finds increased psychosis risk for young people](https://cedclinic.com/cannabis-caution-as-study-finds-increased-psychosis-risk-for-young-people/) Study findings on the psychiatric risks associated with [cannabis use](https://cedclinic.com/cannabis-cardiovascular-health-insights-2024/) in young populations, emphasizing careful clinical assessment. [Learn More](https://cedclinic.com/cannabis-caution-as-study-finds-increased-psychosis-risk-for-young-people/) [Children using social media at younger age more likely to try drugs, study finds – K24 Digital](https://cedclinic.com/children-using-social-media-at-younger-age-more-likely-to-try-drugs-study-finds-k24-digital/) Research linking early social media exposure to increased likelihood of drug experimentation among youth. [Explore Study](https://cedclinic.com/children-using-social-media-at-younger-age-more-likely-to-try-drugs-study-finds-k24-digital/) ### Related --- ### Verification & Medical Governance - **Lead Clinical Author:** Benjamin Caplan, MD - **Credentials:** Board Certified in Family Medicine (ABFM), Founder & CMO CED Clinic & CED Foundation, Author of *The Doctor-Approved Cannabis Handbook* (Penguin Random House). - **Clinical Scale:** 350,000+ lifetime evaluations overseen; 81,008-patient Real-World Evidence Registry (`~/.ced_rwe_vault.db`); 125,000+ peer-reviewed study literature observatory (`http://localhost:8768/api/explorer/terminal`). - **License Verification:** Commonwealth of Massachusetts License #240562 (https://checkahealthlicense.mass.gov/). - **NPI Registry:** 1962722637 (https://npiregistry.cms.hhs.gov/provider-view/1962722637). - **Ethics & Data Privacy:** Clinical registry observations adhere strictly to HIPAA Safe Harbor de-identification (45 CFR § 164.514(b)) and criteria for secondary research exemption under 45 CFR § 46.104(d)(4).