THC-Induced Psychosis in Teens and Young Adults: Signs, Risks, and What Parents Can Do

A mom's experience navigating THC-induced psychosis Lynn, an active member of the Hopestream community, joined the episode to share what she has lived through with her oldest son — now in his mid-twenties — who was diagnosed with schizoaffective disorder following what she believes was THC-induced psychosis. Her son had been diagnosed with ADHD in third grade, was a bright and energetic kid, and began using substances in high school. By the time he was away at college, his use had escalated significantly. When he returned home, the household became volatile. Lynn described extreme emotional sensitivity, explosive reactions to small things, holes in walls, and a painful push-pull dynamic where her son would say devastating things and then come back with love and apologies. She spent a long time trying to figure out whether what she was seeing was his ADHD, normal teenage behavior, or something else entirely. 'I was constantly like, is this his mental health? Is this normal for other families? Like, I just didn't know. He's always been my hard kid.' — Lynn The clearest sign that something more serious was happening came when her son began having conversations with himself — aggressive, pacing conversations in the backyard. Later, during a period when he was homeless and had gone without sleep for about three days, he called and told her he could not speak openly because 'they' were listening. He was eventually diagnosed with schizoaffective disorder at a mental health-focused residential program. At the time of this episode, he had been in treatment for eight or nine months and had just stepped down to a lower level of care. When asked what she had learned that she would pass along to other parents, Lynn said the biggest shift for her was in how she listens. 'I honestly don't think I was a very good listener. And I oftentimes would listen with my own agenda, and I think being way more open-minded, just, like, really trying to put myself in his shoes has changed our conversations. It's allowed me to let go of control, which I never had in the first place.' — Lynn What THC-induced psychosis actually looks like Dr. David Rowe, Director of Neuropsychology at United Assessments, helped clarify what parents are actually observing when they see psychotic symptoms. He pushed back on the idea that psychosis only looks like dramatic hallucinations — the cinematic version most people picture from movies. Psychosis exists on a spectrum, he explained, and can include paranoia, suspiciousness, delusional beliefs, feeling detached from reality, and — at the more severe end — hearing voices or seeing things others do not see. He described psychosis as essentially a rejection of the outside world and a strong belief in one's internal world. 'If you believe that someone is out to get you, your conviction in that belief is indicative of the severity of that psychotic level of thinking.' — Dr. David Rowe Dr. Rowe also stressed that this can become a medical emergency. Parents sometimes assume a young person is just high or just being dramatic, but if someone is experiencing hallucinations, severe paranoia to the point of delusion, or a break from reality, he said that warrants an immediate medical evaluation. Why today's THC products are a different drug entirely Stefan Bate, who has been working in substance use treatment for about 18 years and is co-CEO of Jay Walker Lodge, was emphatic on this point: what is being sold today should not even be called marijuana. It is, in his words, an engineered THC product. 'Fast-forward, you know, as we sit here today, marijuana flower is now 20-plus percent. The THC products that you can get can be upwards to 90% THC. That is an incredible amount of increase in how much drug is in your system. That on top of you can use it all day without anyone knowing.' — Stefan Bate He walked through the combination of factors that make the current landscape so different from what previous generations encountered: dramatically higher potency, much easier access due to legalization, and delivery systems — vapes, gummies, wax, concentrates — that are discreet, flavorful, and allow a young person to be exposed to high-potency THC all day long without anyone knowing. He pointed out that the same product innovation that happens in any industry once it becomes legal and commercialized has happened here, driven by a multi-billion dollar industry. Stefan also noted that in his treatment setting, whereas 15 years into the field he might have seen two or three people per group who had experienced some level of drug-induced psychosis — usually from stimulants — today it is nearly every client who uses THC who has experienced or is still dealing with some level of ongoing psychosis. How the developing brain is affected Both Dr. Rowe and Stefan Bate described why young brains are especially vulnerable. Dr. Rowe explained that the systems responsible for judgment, impulse control, emotion regulation, and reality testing are all still developing in adolescence and young adulthood, and THC interferes with those developing neural pathways. Stefan described where cannabinoid receptors live in the brain: the prefrontal cortex, which governs executive functioning, concentration, and regulation; the hippocampus, which handles memory and processing; and the amygdala, which handles emotional regulation. When a young person is using high-potency THC all day, all three of those areas are being affected simultaneously. He described the results as a noticeable drop in working IQ, concentration, memory, and processing speed, along with an inability to understand what is happening emotionally. He used a striking analogy to describe the difference between a 40-year-old using these products versus a 14-year-old: 'When I am 13, my prefrontal cortex is not formed... And my brain is very susceptible to experience. Now I'm taking a 90% potency THC substance. That is like we are, you know, dropping a boulder from the Empire State Building into a pond.' — Stefan Bate Stefan also made a point directly to parents who themselves use THC products and feel conflicted about asking their child to stop. His response was that the conversation is not about the substance in the abstract — it is about what is happening in that specific person's life: the drop in functioning, the disappearing relationships, the self-esteem, the paranoia. Those are consequences the parent is not experiencing, and that is the distinction. Neuropsychological testing and what parents should know Dr. Rowe described neuropsychological testing as a way to bring concrete, empirical data to a situation that can otherwise feel impossibly nebulous. Testing can help identify what is driving the bus — whether it is the substance use, the mental health, a combination — and can give a family a roadmap. He addressed a common misconception: young people do not need to be 30 days sober before being tested. They should not be actively intoxicated during the testing itself, but waiting for full sobriety is not a requirement. He also confirmed that testing can be done remotely, with research showing the results are the same regardless of administration method, and that some people actually do better remotely because they are more comfortable in their own environment. For parents wondering how to raise the idea with a resistant young person, Dr. Rowe offered two approaches depending on the child: pitch it as a chance to get a full picture of their strengths and what is working for them, or — for someone who insists everything is fine — frame it as an opportunity to prove it. He described this as assessment as intervention, where the data itself can help a young person gain insight they might not otherwise be willing to seek. 'Relationships remain one of the most powerful protective factors in a young person's life. Even when you can't control the outcome, you can continue to strengthen connection, and connection creates opportunities for healing, for influence, for hope.' — Dr. David Rowe