New study shows cannabis can impair driving for more than five hours—long after users feel ready to drive
Researchers have uncovered that cannabis affects driving ability far longer than most people think.
Cannabis intoxication alters metabolism, but frequent users show fewer effects
Scientists have identified metabolic changes in the blood linked to cannabis intoxication, revealing key differences between occasional and chronic users.
Surprising link between cannabis use and cognitive decline uncovered after analyzing decades of data
A study tracking men for 44 years found past cannabis use did not accelerate cognitive decline. Users actually experienced a slightly smaller decline than non-users.
How cannabis influences brain plasticity: Scientists uncover crucial role of astrocytes
New research reveals astrocytes, not just neurons, are crucial for cannabinoid receptor-mediated brain plasticity during development.
Legal cannabis linked to drop in anxiety medication prescriptions
Could legal marijuana be changing how we treat anxiety? A new study in JAMA Network Open reveals that in states with legal cannabis, fewer patients are filling prescriptions for anti-anxiety medications like benzodiazepines.
Adolescent cannabis use may heighten sensitivity to amphetamine’s cognitive effects in adulthood
Adolescent THC exposure in rat increased amphetamine-induced risky decisions in adulthood, particularly in females, without affecting overall cognitive flexibility.
New study links poor sleep quality to cannabis-related memory issues
New research reveals that disrupted sleep may be the hidden link between heavy cannabis use and memory deficits, unmasking an unexpected culprit behind cognitive impairments.
Shared genetic factors uncovered between ADHD and cannabis addiction
A recent study found a strong genetic overlap between ADHD and cannabis use disorder, identifying shared genes active in the brain. These findings suggest genetic risk factors could help predict and prevent cannabis dependence in individuals with ADHD.
Cannabis use worsens reduced brain connectivity in young adults at risk for psychosis, study finds
Recent research found that young adults at risk of psychosis have reduced brain connectivity, and cannabis use worsens this issue, potentially disrupting brain development and increasing vulnerability to psychotic disorders.
Adolescent cannabis use and psychosis: Study finds shared risk factors and self-medication patterns
Adolescents who used cannabis reported more psychosis spectrum symptoms and distress, supporting shared vulnerability and self-medication hypotheses.
Brain structure and function differ in cannabis users, but genetic evidence suggests no direct causal link
Cannabis use is linked to changes in brain structure and function in older adults, but genetic analysis suggests these differences are likely due to other factors, not cannabis use itself.
Prenatal cannabis exposure linked to early childhood behavioral and cognitive challenges
Children exposed to cannabis before birth showed weaker attention, self-control, and planning skills in lab tests, along with more aggressive behavior.
New study provides first objective evidence of cannabinol’s potential to improve sleep
A compound found in cannabis, known as cannabinol, has been shown to enhance sleep in a new animal study.
Prenatal exposure to synthetic cannabinoid alters breathing and cardiovascular health in rats
Prenatal exposure to the synthetic cannabinoid WIN caused sex-specific respiratory control changes, fragmented sleep, and heightened cardiovascular risks in rats, highlighting potential long-term health concerns for offspring from cannabis use during pregnancy.
High-potency cannabis use leaves a distinct mark on DNA
High-potency cannabis use alters DNA methylation, impacting genes related to energy and immunity. These changes differ in psychosis patients, suggesting DNA markers may help identify users at higher psychosis risk and improve understanding of cannabis's biological effects.
