Policy brief: Prenatal Cannabis Exposure and Foetal Neurodevelopment
Overview Recent human evidence adds weight to longstanding concerns that cannabis use during pregnancy can interfere with foetal brain development in biologically meaningful ways. The 2026 study by Ugartemendia and colleagues links prenatal cannabis exposure with altered cannabinoid signalling, altered dopamine-related signalling, and shifts in regulatory microRNAs in the developing human brain, with stronger effects
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