Cannabis use associated with poorer sleep quality on objective, but not subjective, measures

When researchers measured the quality of sleep using medical‐grade sleep tracking, they found that both cumulative and recent cannabis use was associated with poorer sleep. However, participants did not think they had poorer sleep. According to the authors of the report, “Recent and Cumulative Cannabis Use and Sleep in Middle‐Aged Adults” published in JAMA Network Open October 9, the study results show that it is important to assess both objective and subjective sleep. Whatever the participants thought, they were likely damaging their sleep health, the researchers, led by Thanh‐Huyen T. Vu, M.D., concluded.