Mental Health DailyResearch. Evidence. Perspective.Published research on thc.
In a UK registry study of 130 autistic adults on prescribed cannabis, self-rated anxiety and sleep improved most in the first months and partly faded by 18 months as THC doses rose; there wa…
Read articleCannabis users often say the drug helps them blunt stressful memories. A 2026 randomized trial of 36 healthy adults tested low-dose oral THC against placebo during retrieval of a standardize…
Read articleA 2026 laboratory study found no detectable acute-pain increase in frequent cannabis users after at least 12 hours of biochemically verified abstinence. Frequent users had higher THC exposur…
Read articleA 2026 rat study found that 21 days of late-adolescent tetrahydrocannabinol (THC) exposure produced adult anxiety-like behavior in the elevated plus maze and weaker novel object recognition …
Read articleA 2026 prospective German aneurysm cohort found risky alcohol use in 4.6% of 954 intracranial aneurysm patients, and that exposure carried 2.00x higher adjusted odds of aneurysm rupture plus…
Read articleA 2026 nuMoM2b Heart Health Study analysis tested whether urine-confirmed cannabis exposure 2–7 years after a first pregnancy predicted incident stage II hypertension; it did not: adjusted o…
Read articleStudies of adolescent cannabis effects on cognition have been limited by self-report and confounding. A 2026 longitudinal study by Wade and colleagues uses the Adolescent Brain Cognitive Dev…
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