Daily marijuana users reported more sleep disturbance than people who used marijuana less often or not at all, countering the perception that the drug helps to treat insomnia, according to a new study co-authored by a School of Public Health researcher.
The study, in the Journal of Addictive Diseases, found that daily marijuana users scored higher on the Insomnia Severity Index and sleep-disturbance measures than non-daily users. Ninety-eight marijuana users, most in their early 20s, participated in the study, which was co-authored by Michael Stein, chair of health law, policy & management and the study’s principal investigator.
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