Does cannabis help you sleep?
The power of marijuana to induce sleep has been confirmed by a number of studies. A review of clinical trial data of the cannabis-based medicines containing primarily THC, CBD, and a 1:1 combination of the two published in the journal Chemistry & Biodiversity noted “a mild activating effect of CBD, and slight residual sedation with TCH-predominant extracts.” Authors remarked that most of the 2000 subjects that took cannabis extracts in clinical trials demonstrated “marked improvement in subjective sleep parameters,” as well as no growing tolerance to the drug over several years. In a Canadian study of 104 HIV-positive adults, two thirds endorsed the use of weed for sleep, among other benefits. In the short term, Harvard Medical School concedes, marijuana can have a relaxing effect.