Researchers from the University of Colorado Anschutz Medical Campus looked into the impact of recent and lifetime cannabis ...

A large study from the University of Colorado found heavy cannabis use is linked to reduced brain activity. Lead researcher ...

Cannabis is illegal in Wisconsin for both recreational and medical use. But it's unclear how that affects tribal reservations ...

She was not involved in the study. However, the study does add scientific evidence to long-standing social beliefs about ...

New research shows that heavy lifetime use of cannabis — more than 1,000 times — is associated with reduced activity in areas ...

A new study on brain activity found that heavy cannabis use is linked to reduced activity in memory-related regions, while ...

A new study has revealed how both recent and lifetime cannabis use can affect cognitive function and working memory.

Heavy weed use appears to dull the brains of young adults, particularly affecting their short-term working memory, a new ...

A new study suggests that heavy cannabis use may impair working memory, even after someone has stopped using it.

Schizophrenia cases associated with problematic weed use have skyrocketed in the wake of Canada's legalization of marijuana, ...

Canopy’s stock reversed on earnings after seeing a rally sparked by the possibility of marijuana reform in the U.S.

A new study from the University of Colorado Anschutz Medical Campus suggests that heavy cannabis use negatively affects ...