# The Endocannabinoid System Modulating Levels of Consciousness, Emotions and Likely Dream Contents > **Author:** Benjamin Caplan, MD (ABFM Board Certified, MA Lic. #240562, NPI: 1962722637) > **Publisher:** CED Clinic (https://cedclinic.com) > **Canonical URL:** https://cedclinic.com/endocannabinoid-system-sleep-wake-cycle-dream-modulation/ > **Published:** 2021-12-28T15:49:29-04:00 | **Last Modified / Clinically Audited:** 2026-09-28T11:16:48-04:00 > **Clinical Summary:** Explore how the endocannabinoid system sleep-wake cycle influences consciousness, emotions, and dream contents through cannabinoid signaling. --- The endogenous cannabinoid system is a signaling system of the human body that comprises endocannabinoids (such as anandamide and 2-AG), cell-surface receptors (CB1 and CB2), as well as proteins responsible for the synthesis, degradation and transport of endocannabinoids. This system is widely expressed in the brain, and has been shown to control processes involving learning and memory, attention, pain perception, and emotions while its malfunction has been linked with mental disorders including Parkinson’s disease. Currently, an accumulating body of research has revealed that the sleep-wake cycle is also under the influence of the [endocannabinoid system](https://cedclinic.com/endocannabinoid-system-fear-extinction/). For instance, in lab mice, injection of anandamide induces sleep, so does the pharmacological inhibition of the protein that degrades it. In contrast, blocking the CB1 cannabinoid receptor (which is activated by anandamide as well as THC, the psychoactive component of cannabis) promotes wakefulness. Dreaming is a mental activity occurring during sleep, characterized by emotions and sensory perceptions, and involved in memory consolidation. Because of the significant overlap between defining components of dreaming and functions of the [endocannabinoid system](https://cedclinic.com/endocannabinoid-system-fear-extinction/), scientists have begun to hypothesize that this system might modulate dream activity. Some scientific experiments using animal models have emerged to elucidate the mechanisms of this relationship. Moreover, preliminary studies in humans have indicated that treatment with cannabinoids decreases [post-traumatic stress disorder](https://cedclinic.com/military-cannabis-policy-changes-2026-army-loosens-rules/) symptoms, including nightmares. Nonetheless, the role of the endocannabinoid system in dreams generation or control remains under-explored, mostly due to methodological challenges in investigating this subject. [More access here](https://cedclinic.com/) [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 [How the Endocannabinoid System Helps You Cope with Fear](https://cedclinic.com/endocannabinoid-system-fear-extinction/) Discover the role of the endocannabinoid system in managing fear and emotional responses, highlighting its impact on [mental health](https://cedclinic.com/cannabis-psychiatric-research-findings-depression-anxiety/). [Learn More](https://cedclinic.com/endocannabinoid-system-fear-extinction/) [Neurological and neurodegenerative conditions, physical activities, and the endocannabinoid system – how might all these be linked?](https://cedclinic.com/endocannabinoid-system-neurological-disorders-link/) Explore connections between the endocannabinoid system, [neurological health](https://cedclinic.com/benzodiazepine-discontinuation-rates-medical-cannabis/), and physical activity in neurodegenerative conditions. [Read Article](https://cedclinic.com/endocannabinoid-system-neurological-disorders-link/) [Natural Neuroprotection: Exploring the Potential of Non-Psychoactive Cannabinoids](https://cedclinic.com/non-psychoactive-cannabinoids-neuroprotection-potential/) Learn about non-psychoactive cannabinoids and their potential neuroprotective effects within the endocannabinoid system. [Explore Now](https://cedclinic.com/non-psychoactive-cannabinoids-neuroprotection-potential/) Have thoughts on this? 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