# New Study Links Cannabis Use in Teens to Psychosis Risk > **Author:** Benjamin Caplan, MD (ABFM Board Certified, MA Lic. #240562, NPI: 1962722637) > **Publisher:** CED Clinic (https://cedclinic.com) > **Canonical URL:** https://cedclinic.com/cannabis-youth-psychosis-risk-study-insights/ > **Published:** 2026-02-23T17:35:25-04:00 | **Last Modified / Clinically Audited:** 2026-09-28T12:01:54-04:00 > **Clinical Summary:** Explore the cannabis youth psychosis risk revealed by a major study linking teen cannabis use to later psychosis and mental health challenges. --- CED Clinical Relevance**#72 Notable Clinical InterestEmerging findings or policy developments worth monitoring closely. Mental Health Safety Research Pediatrics THC Why This MattersIf you are a parent, caregiver, or young adult patient, this research reinforces that [cannabis therapies](https://cedclinic.com/deep-reading-decline-digital-age-insights/) should be reserved for adults with clinical oversight, and that adolescent use without medical necessity carries real psychiatric risk. Clinical Summary Large-scale research continues to reinforce what clinicians have observed for years: [adolescent cannabis use](https://cedclinic.com/adolescent-cannabis-use-and-anxiety-research/) is associated with increased risk of psychotic disorders, depression, and anxiety later in life. The developing brain, particularly before age 25, is uniquely vulnerable to the effects of THC on [endocannabinoid system](https://cedclinic.com/endocannabinoid-system-fear-extinction/) signaling, and early exposure may alter neurodevelopmental trajectories in ways that increase psychiatric risk. This is precisely why [cannabis medicine](https://cedclinic.com/essential-oils-industrial-hemp-antimicrobial-benefits/) physicians emphasize that adult medical use under clinical supervision is fundamentally different from unsupervised adolescent recreational use. Dr. Caplan’s Take“This is not an argument against medical cannabis, it is an argument for keeping it out of developing brains and in the hands of clinicians who understand dosing, timing, and risk.” Clinical Perspective A large new study adds to the growing body of evidence that [adolescent cannabis use](https://cedclinic.com/adolescent-cannabis-use-and-anxiety-research/) is associated with increased risk of psychosis, depression, and anxiety in later years. This aligns with what we understand about [endocannabinoid system](https://cedclinic.com/endocannabinoid-system-fear-extinction/) development: THC exposure during critical neurodevelopmental windows can disrupt signaling pathways that regulate mood, perception, and cognition. In my clinic, I see 30,000+ adult patients who benefit from carefully dosed [cannabis therapy](https://cedclinic.com/cannabis-based-therapies-smoking-cessation/), and that success depends on mature neurobiology and clinical supervision. Adolescent recreational use is not the same as adult medical use, and conflating the two does a disservice to both patient safety and the field. If anything, studies like this should motivate us to regulate smarter, not to retreat from [cannabis medicine](https://cedclinic.com/essential-oils-industrial-hemp-antimicrobial-benefits/) altogether. Have thoughts on this? Share it: [𝕏 Share on X](https://twitter.com/intent/tweet?text=Just+read+this+on+CEDclinic.com%3A+A+huge+%3Cb%3Estudy%3C%2Fb%3E+finds+a+link+between+%3Cb%3Ecannabis%3C%2Fb%3E+use+in+teens+and+psychosis+later+-+WBAA+%40drcaplan&url=https%3A%2F%2Fwww.wbaa.org%2F2026-02-23%2Fa-huge-study-finds-a-link-between-cannabis-use-in-teens-and-psychosis-later) [in Share on LinkedIn](https://www.linkedin.com/sharing/share-offsite/?url=https%3A%2F%2Fwww.wbaa.org%2F2026-02-23%2Fa-huge-study-finds-a-link-between-cannabis-use-in-teens-and-psychosis-later) [🦅 Share on BlueSky](https://bsky.app/intent/compose?text=Just+read+this%3A+A+huge+%3Cb%3Estudy%3C%2Fb%3E+finds+a+link+between+%3Cb%3Ecannabis%3C%2Fb%3E+use+in+teens+and+psychosis+later+-+WBAA+%E2%80%94+via+%40drcaplan.bsky.social+https%3A%2F%2Fwww.wbaa.org%2F2026-02-23%2Fa-huge-study-finds-a-link-between-cannabis-use-in-teens-and-psychosis-later) [📷 Follow on Instagram](https://www.instagram.com/drbenjamincaplan/) [📝 Read more on Substack](https://substack.com/@doctorapproved) [🔔 Subscribe via RSS](https://cedclinic.com/category/cannabis-news/feed/) Want the full critical read? Dr Caplan’s review of the JAMA Health Forum paper, including what the methods do and do not allow us to conclude: [Adolescent Cannabis Use and Psychosis Risk – Study Review](https://cedclinic.com/adolescent-cannabis-psychiatric-outcomes-2026-digest/) Related Articles - [Teens Who Use Cannabis** Face Higher Risk Of Mental Disorders, Study Finds – Forbes](https://cedclinic.com/teen-cannabis-use-mental-health-risks-study/) - [A huge **study** finds a link between **cannabis** use in teens and psychosis later – NPR](https://cedclinic.com/large-scale-adolescent-cannabis-study-psychosis-link/) - [Kaiser Study Finds Higher Risk of Psychiatric Disorders in Teens Who Use Cannabis](https://cedclinic.com/adolescent-cannabis-psychiatric-outcomes-2026-digest/) 💬 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/) 📰 Source: [https://www.wbaa.org/2026-02-23/a-huge-study-finds-a-link-between-cannabis-use-in-teens-and-psychosis-later](https://www.wbaa.org/2026-02-23/a-huge-study-finds-a-link-between-cannabis-use-in-teens-and-psychosis-later) Further Reading Research Digest[Daily Digest 2026-03-07](https://cedclinic.com/adolescent-cannabis-psychiatric-outcomes-2026-digest/) Evidence Watch[`Cannabinoid Clinical Trials: CBD Cortical Excitability Study`](https://cedclinic.com/cannabidiol-lacks-intrinsic-anti-epileptic-properties-trial/) CED Clinic Blog[Cannabis-Infused Beverages as Alcohol Alternatives: New York at Five Years](https://cedclinic.com/cannabis-beverage-substitution-alcohol-new-york-five-years/) [https://cedclinic.com/contact/](https://cedclinic.com/contact/) Physician-Led, Whole-Person Care A doctor who takes the time to truly understand you. 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 [Cannabis affects childhood brain development, is 'real risk' for teens, UCSD finds in long-term study](https://cedclinic.com/cannabis-affects-childhood-brain-development-is-real-risk-for-teens-ucsd-finds-in-long-term-study/) This UCSD study explores how cannabis impacts brain development in children and teens, emphasizing the real risks involved. [Read the UCSD Study](https://cedclinic.com/cannabis-affects-childhood-brain-development-is-real-risk-for-teens-ucsd-finds-in-long-term-study/) [It may be legal for adults, but cannabis use a danger to young brains](https://cedclinic.com/it-may-be-legal-for-adults-but-cannabis-use-a-danger-to-young-brains/) An article discussing the dangers of cannabis use on young brains despite adult legalization, highlighting developmental concerns. [Learn More](https://cedclinic.com/it-may-be-legal-for-adults-but-cannabis-use-a-danger-to-young-brains/) [New Clinical Insights on Cannabis and Patient Outcomes](https://cedclinic.com/new-clinical-insights-on-cannabis-and-patient-outcomes/) Explore recent clinical insights on cannabis use and its varied patient outcomes, including mental health implications. [Explore Insights](https://cedclinic.com/new-clinical-insights-on-cannabis-and-patient-outcomes/) ### 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).