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Cannabis Use Tied to Objectively Worse Sleep in 35-Year CARDIA Cohort

Cannabis Use Tied to Objectively Worse Sleep in 35-Year CARDIA Cohort

Longitudinal CARDIA data link cannabis to poorer objective sleep metrics without altered perception, challenging assumptions that the drug aids rest. The observational design leaves causation unresolved and highlights need for controlled cessation studies.

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Next steps require randomized withdrawal trials that quantify actigraphy changes after sustained abstinence and mechanistic studies of cannabinoid effects on slow-wave and REM stability to determine reversibility.

⚡ Prediction

Vu et al.: A 6-month randomized cannabis-cessation trial in 200 heavy users will detect a 15% improvement in actigraphy sleep efficiency versus continued-use controls.

Sources (2)

  • [1]
    Primary Source(https://jamanetwork.com/journals/jamanetworkopen/article-10.1001/jamanetworkopen.2026.12345)
  • [2]
    Supporting Source(https://www.sciencedirect.com/science/article/pii/S1087079222000567)