Scoping Review Finds Growing Evidence Linking the Endocannabinoid System to ADHD Pathophysiology
A scoping review found emerging evidence that endocannabinoid system dysfunction may contribute to ADHD, potentially explaining both the high rates of cannabis use in ADHD populations and the popular perception that cannabis is therapeutic for the condition.
Quick Facts
What This Study Found
The review identifies neurobiological overlap between endocannabinoid function and cognitive dysfunction seen in ADHD. Cannabis use and cannabis use disorder are more prevalent in individuals with ADHD compared to the general population. However, the relationship between cannabis use and ADHD symptomology remains poorly understood.
Key Numbers
Cannabis use disorder more prevalent in ADHD than general population; neurobiological correlates identified between ECS function and ADHD cognitive dysfunction.
How They Did This
Scoping review of preclinical and clinical evidence on the relationship between the endocannabinoid system and ADHD, including studies of ECS dysfunction and cannabis use patterns in ADHD populations.
Why This Research Matters
ADHD is one of the most common psychiatric disorders, and many patients self-medicate with cannabis. Understanding whether there is a genuine neurobiological basis for this could lead to targeted cannabinoid therapies or better risk communication.
The Bigger Picture
If ECS dysfunction contributes to ADHD, it could explain both the therapeutic potential and the elevated risk of cannabis use disorder in this population. This has implications for whether cannabinoid-based treatments could be developed for ADHD.
What This Study Doesn't Tell Us
Scoping review maps the landscape but does not systematically assess evidence quality. Preclinical and clinical evidence is still limited. Cannot distinguish whether ADHD patients use cannabis because of ECS dysfunction or for other reasons.
Questions This Raises
- ?Could ECS-targeted therapies treat ADHD without the risks associated with cannabis use?
- ?Is the high rate of cannabis use in ADHD self-medication or shared vulnerability?
Trust & Context
- Key Stat:
- Cannabis use disorder more prevalent in ADHD than general population
- Evidence Grade:
- Scoping review that maps an emerging field; evidence is early-stage and largely preclinical.
- Study Age:
- 2024 publication
- Original Title:
- Attention Deficit Hyperactivity Disorder, Cannabis Use, and the Endocannabinoid System: A Scoping Review.
- Published In:
- Developmental psychobiology, 66(7), e22540 (2024)
- Authors:
- Ryan, Jennie E(3), Fruchtman, Mitchell(2), Sparr-Jaswa, Andrea, Knehans, Amy, Worster, Brooke
- Database ID:
- RTHC-05675
Evidence Hierarchy
Frequently Asked Questions
Does cannabis help with ADHD?
This scoping review found emerging evidence that the endocannabinoid system may be involved in ADHD, but the evidence is too limited to support cannabis as a treatment. People with ADHD do use cannabis at higher rates, but whether this represents effective self-medication or harmful substance use remains unclear.
Why do people with ADHD use cannabis more often?
This review suggests there may be neurobiological overlap between endocannabinoid function and ADHD-related cognitive dysfunction. This could explain why some ADHD patients perceive benefit from cannabis, though it also means they may be at higher risk for cannabis use disorder.
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Cite This Study
https://rethinkthc.com/research/RTHC-05675APA
Ryan, Jennie E; Fruchtman, Mitchell; Sparr-Jaswa, Andrea; Knehans, Amy; Worster, Brooke. (2024). Attention Deficit Hyperactivity Disorder, Cannabis Use, and the Endocannabinoid System: A Scoping Review.. Developmental psychobiology, 66(7), e22540. https://doi.org/10.1002/dev.22540
MLA
Ryan, Jennie E, et al. "Attention Deficit Hyperactivity Disorder, Cannabis Use, and the Endocannabinoid System: A Scoping Review.." Developmental psychobiology, 2024. https://doi.org/10.1002/dev.22540
RethinkTHC
RethinkTHC Research Database. "Attention Deficit Hyperactivity Disorder, Cannabis Use, and ..." RTHC-05675. Retrieved from https://rethinkthc.com/research/ryan-2024-attention-deficit-hyperactivity-disorder
Access the Original Study
Study data sourced from PubMed, a service of the U.S. National Library of Medicine, National Institutes of Health.
This study breakdown was produced by the RethinkTHC research team. We analyze and report published research findings without making health recommendations. All interpretations are based solely on the published abstract and study data.