Cannabis

A study of adolescent twins links occasional cannabis use with increased psychotic-like experiences. The findings suggest the relationship is shaped by individual environments rather than shared genetics or specific brain connectivity patterns.

People who reported meaningful psychedelic experiences later showed reduced cannabis use and increased psychological flexibility. These findings suggest psychedelics might influence substance use behaviors in lasting ways, particularly when the experience is intense or transformative.

Inhaled CBD reduced inflammation and improved cognition in mice with Alzheimer’s, according to a study in eNeuro, pointing to a promising immune-based approach for treating the disease beyond traditional amyloid-focused therapies.

Researchers have found that a moderate dose of THC lowers connectivity between key brain networks in young adults. These changes, seen on brain scans, could help explain how cannabis use affects mood, attention, and perception during intoxication.

A promising new treatment for chronic low back pain has emerged from a large clinical trial. Published in Nature Medicine, the study found a cannabis extract provided significant pain relief while showing no signs of causing dependence, addiction, or withdrawal...

A new study suggests cannabis use may offer same-day reductions in PTSD symptoms and negative affect among veterans. However, the effects appear short-lived, raising questions about long-term reliance on cannabis for managing trauma-related symptoms.

A new study suggests that cannabidiol may not ease fear or panic when tested under controlled laboratory conditions. Canadian researchers found that even high doses of cannabidiol did not reduce fear responses triggered by carbon dioxide inhalation in healthy adults.

New research suggests that after a two-day break, frequent cannabis use does not impair simulated driving performance. These findings could influence public health policy and legal standards for determining cannabis-impaired driving, which often rely on past use indicators.

Scientists have discovered that THC and CBD push the brain in opposite directions. A neuroimaging study in rats shows that THC boosts connectivity and blood flow, while CBD dampens brain signaling—and combining them creates a more balanced effect.

Despite growing interest in cannabidiol as a treatment for substance use, a new study finds no evidence that a single dose alters brain function, craving, or drinking behavior in youth with alcohol use disorder.

Adults with anxiety who used cannabis reacted more strongly to stress but also bounced back more effectively. The study, published in the Journal of Psychopathology and Clinical Science, examined real-world cannabis use and emotional processing.

New research has found that inattention symptoms predict functional cannabis-related harms like academic difficulties and memory blackouts, while hyperactivity symptoms are linked to heavier use and increased dependence, pointing to distinct risk pathways in young adults with ADHD.

People diagnosed with cannabis use disorder tend to perform worse on memory and thinking tasks, according to new research. The study found moderate cognitive deficits, especially in learning and processing speed.

A non-intoxicating cannabis compound may help protect the brain from the damaging effects of chronic social stress. New research shows cannabidiol reversed stress-related changes in behavior and gene expression in mice exposed to repeated social defeat.

A new study suggests that children exposed to cannabis in utero show reduced brain activation during reward anticipation—especially in the striatum—and are more likely to report psychotic-like experiences during adolescence. The findings provide evidence of altered neural development tied to...