A study conducted by Northwestern Medicine has found that marijuana use may lead to poorer sleep quality among users, despite their subjective reports indicating otherwise. The research, which involved 1,266 participants over nearly 35 years, showed that both lifetime and recent cannabis users had objectively worse sleep metrics. Senior study author Mercedes R. Carnethon emphasized that the data does not support the idea of cannabis as an effective sleep aid. The findings raise concerns about the long-term implications of marijuana use on sleep health.
Key facts
- The study involved 1,266 participants monitored for nearly 35 years.
- Greater lifetime cannabis use was linked to worse sleep quality.
- Participants reported no decline in sleep quality despite objective measurements.
- The study accounted for factors like age, race, and alcohol consumption.
- Findings raise questions about the effectiveness of marijuana as a sleep aid.
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