Cannabinoid hyperemesis syndrome (CHS) is a poorly understood clinical condition, characterized by cyclical vomiting in the context of long-term, frequent cannabis use. This condition has recently emerged as an increasing burden to emergency departments (ED) and health care systems, alongside the increased normalization of cannabis use worldwide.… Read the rest
Announcing the Winners of Johnny’s Ambassadors PSA Video Contest for Anti-420 Day
Johnny’s Ambassadors sponsored a Video PSA Contest demonstrating the importance of preventing cannabis/THC use (vaping, dabbing, marijuana, edibles) among high school students. The contest was an opportunity for high schools to demonstrate how their students are working to prevent cannabis misuse at their school and to encourage their peers to abstain.… Read the rest
Johnny’s Ambassadors Programs Are Eligible for Opioid Settlement Funds
Because there is a strong connection between youth THC use and later opioid misuse, several of our partners have been able to access opioid settlement funds and grants in partnership with their state, region, or local opioid councils to bring Johnny’s Ambassadors evidence-based programs to their schools and communities.… Read the rest
High-Potency Cannabis Linked to Dramatically Higher Risk of Psychotic Episodes
Recent medical research has consistently linked adolescent cannabis use with a higher frequency of poor mental health later in life, compared to those who never used cannabis. This includes an increased risk of psychosis, though the causality of that link isn’t completely understood.… Read the rest
Announcing the Johnny’s Ambassadors Community Conversations U.S. Tour
Educating Communities About the Dangers of Youth THC Use
Coming to 10 Cities Near You!
All Community Conversations are from 6:00 PM to 7:30 PM. Laura will give a one-hour presentation, followed by 30 minutes of Q&A. The ENTIRE COMMUNITY is invited: parents (and older teens over 16), schools, healthcare and prevention professionals, legislators, community coalitions, law enforcement, and small businesses.… Read the rest
Is THC Addictive?
Anything that makes you high can be addictive, and THC fits the bill. But don’t take my word for it. The medical and psychiatric consensus is that THC isquite addictive, as classified by the bible of the psychiatric profession, The Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5).… Read the rest
Are High Schools Losing the Struggle to Block Pot?
A recent excellent Wall Street Journal article describes the challenges Johnny’s Ambassadors has seen in schools over the past five years after several hundred assemblies to nearly a half million teens: THC is everywhere, and it’s a mess in our schools.… Read the rest
Johnny’s Ambassadors at the United Nations
What an incredible week we had in Vienna at the United Nations Commission on Narcotic Drugs CND conference! It was our first time to Vienna, which is a beautiful city with rich history, as well as delicious coffees and pastries!
Our first business meeting was with Sara Carter, the Director of the ONDCP (Office of National Control Policy), with Amy Ronshausen from the Drug-Free America Foundation and Shane Varco from the Delgarno Institute in Australia.… Read the rest
No evidence to suggest medicinal cannabis is effective for depression, anxiety or PTSD
Media Release: The University of Sydney
A landmark Lancet paper published today – the largest-ever review of the safety and efficacy of cannabinoids across a range of mental health conditions – found no evidence that medicinal cannabis is effective in treating anxiety, depression or post-traumatic stress disorder (PTSD). … Read the rest
Changes in Cross-Sectional Associations Between Cannabis Use and Anxiety, Depression, and Suicidality in a Nationally Representative Sample of Canadians From 2012 to 2022
February 2026
This study found that cannabis use among Canadians is linked with anxiety, depression, and suicidality. From 2012 to 2022, both cannabis use and depression and anxiety disorders rose, with stronger links between them over time. These findings reveal a growing association between cannabis use and depression, anxiety, and suicidality in Canada.… Read the rest