Could the Endocannabinoid System Influence Your Dreams?
The endocannabinoid system modulates consciousness, emotions, and sleep, leading researchers to hypothesize it also influences dream content, with preliminary evidence that cannabinoids reduce PTSD-related nightmares.
Quick Facts
What This Study Found
This review proposed a novel hypothesis: that the endocannabinoid system influences dream activity.
The reasoning builds on established evidence that the endocannabinoid system modulates multiple processes integral to dreaming: consciousness, learning and memory, attention, pain perception, emotions, and the sleep-wake cycle itself. Blocking CB1 receptors or inhibiting FAAH activity affects wakefulness, while blocking anandamide transport enhances sleep.
Preliminary clinical evidence supports the hypothesis. Treatment with cannabinoids has been reported to decrease PTSD symptoms, including nightmares, suggesting direct modulation of dream content.
The review proposed a conceptual framework for understanding how the endocannabinoid system might influence the generation of dream experiences, integrating evidence from human and animal models on emotional states, sleep architecture, and consciousness.
Key Numbers
The review cites preliminary PTSD studies showing cannabinoid-related nightmare reduction but does not report specific pooled statistics.
How They Did This
Literature review of PubMed sources examining the endocannabinoid system's role in consciousness, emotions, sleep, and dream activity. Proposes a conceptual framework linking these functions.
Why This Research Matters
If the endocannabinoid system modulates dream content, it could explain why cannabis users often report reduced dreaming and why PTSD patients sometimes find relief from nightmares with cannabinoids. Understanding this connection could lead to targeted treatments for trauma-related sleep disturbances.
The Bigger Picture
Dreams, particularly nightmares, are among the most distressing symptoms of PTSD and contribute to sleep avoidance and insomnia. An endocannabinoid mechanism for dream modulation could provide a biological basis for developing cannabinoid-based treatments for trauma-related sleep disorders.
What This Study Doesn't Tell Us
The dream modulation hypothesis is largely theoretical and has not been directly tested. The mechanisms linking endocannabinoid signaling to dream content remain speculative. PTSD nightmare reduction could work through anxiety reduction rather than direct dream modulation.
Questions This Raises
- ?Does chronic cannabis use suppress REM sleep and dreaming through endocannabinoid mechanisms?
- ?Would cannabis withdrawal produce more vivid dreams by releasing endocannabinoid suppression?
- ?Could targeted endocannabinoid modulation reduce nightmares without suppressing all dreaming?
Trust & Context
- Key Stat:
- Preliminary evidence shows cannabinoids can reduce PTSD nightmares
- Evidence Grade:
- Hypothesis-generating review based on indirect evidence. Preliminary because the central hypothesis about dream modulation has not been directly tested.
- Study Age:
- Published in 2017.
- Original Title:
- The Endocannabinoid System Modulating Levels of Consciousness, Emotions and Likely Dream Contents.
- Published In:
- CNS & neurological disorders drug targets, 16(4), 370-379 (2017)
- Authors:
- Murillo-Rodriguez, Eric(3), Pastrana-Trejo, Jose Carlos, Salas-Crisóstomo, Mireille, de-la-Cruz, Miriel
- Database ID:
- RTHC-01460
Evidence Hierarchy
Summarizes existing research on a topic.
What do these levels mean? →Frequently Asked Questions
Does cannabis affect dreaming?
Many cannabis users report reduced dreaming, and this review proposes the endocannabinoid system directly modulates dream content. Preliminary evidence shows cannabinoids can reduce PTSD-related nightmares, though the exact mechanisms remain unclear.
Could cannabis help with nightmares?
Preliminary clinical evidence suggests cannabinoids can reduce PTSD-related nightmares. This review proposes this works through the endocannabinoid system's influence on dreaming, but the hypothesis requires further testing.
Read More on RethinkTHC
Cite This Study
https://rethinkthc.com/research/RTHC-01460APA
Murillo-Rodriguez, Eric; Pastrana-Trejo, Jose Carlos; Salas-Crisóstomo, Mireille; de-la-Cruz, Miriel. (2017). The Endocannabinoid System Modulating Levels of Consciousness, Emotions and Likely Dream Contents.. CNS & neurological disorders drug targets, 16(4), 370-379. https://doi.org/10.2174/1871527316666170223161908
MLA
Murillo-Rodriguez, Eric, et al. "The Endocannabinoid System Modulating Levels of Consciousness, Emotions and Likely Dream Contents.." CNS & neurological disorders drug targets, 2017. https://doi.org/10.2174/1871527316666170223161908
RethinkTHC
RethinkTHC Research Database. "The Endocannabinoid System Modulating Levels of Consciousnes..." RTHC-01460. Retrieved from https://rethinkthc.com/research/murillo-rodriguez-2017-the-endocannabinoid-system-modulating
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.