Study Finds Cannabinoid Products May Shorten Sleep Duration in Adults with Insomnia
A recent study reveals that a single dose of medicinal cannabis may decrease total sleep time and REM sleep in adults with insomnia, highlighting the need for further research into its effects on sleep health.
Recent research highlights that cannabinoids, often used by individuals seeking better sleep, may have unintended effects on sleep architecture. Despite the popular belief that cannabis aids sleep, a new pilot study published in the Journal of Sleep Research presents evidence that a single dose of medicinal cannabis can actually reduce total sleep time. Conducted on 20 adults diagnosed with insomnia, the study involved a randomized, double-blind design where participants received either a placebo or a precisely measured cannabis oil containing 10 mg THC and 200 mg CBD.
Results showed that the cannabinoid treatment decreased total sleep duration by approximately 24.5 minutes, primarily due to a significant reduction in REM sleep—a phase associated with dreaming and crucial for cognitive functions. Interestingly, participants did not perceive any deterioration in sleep quality, and their next-day alertness remained unaffected, as measured by cognitive and driving simulation tests.
Participants underwent overnight sleep studies with high-density EEG caps to monitor brain activity, while their alertness was tested through repeated assessments. The findings reveal that THC and CBD can suppress REM sleep without causing noticeable impairments the following day. However, the study authors emphasize that these results stem from a single-dose scenario and do not reflect long-term effects.
The research underscores a gap between public perception and scientific evidence regarding cannabis’s role in sleep management. A review of 21 recent studies suggests that current data is insufficient to support the routine use of medicinal cannabis for sleep disorders. The authors call for more comprehensive, long-term clinical trials to better understand the potential benefits and risks of cannabis-based treatments for sleep issues.
This study emphasizes caution and highlights the need for rigorous research, especially given the widespread use of cannabis products for sleep-related concerns. As the scientific community continues to explore this topic, healthcare providers and patients should remain informed about the limited evidence supporting cannabis as a sleep aid.
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