A new study finds teen cannabis use may be linked to a doubled risk of serious mental illness, including psychosis and ...

Researchers followed more than 400,000 teens until they were adults. It found that those who used marijuana were more likely to develop serious mental illness, as well as depression and anxiety.

While we know that cannabis is psychoactive and psychotropic, affecting the mind and perception of users, could it be psychedelic? All drugs are psychoactive, but not all psychoactive drugs are ...

As cannabis replaces alcohol, normalization is outpacing medical awareness. What rising THC use means for teens, mental ...

It’s not in your stomach; it’s in your head. Scientists have mapped exactly how cannabis overrides your brain's satiety ...

The largest fMRI study to date finds that heavy cannabis use in young adults reduces brain activity and impairs working memory performance.

Mayor of London Sadiq Khan has called for the partial decriminalisation of cannabis, following an independent report. (Getty Images) Sadiq Khan has called for the partial decriminalisation of cannabis ...

Research apparently shows the effect is different on people over 40.

Forbes contributors publish independent expert analyses and insights. Emily Earlenbaugh covers cannabis science and culture. As cannabis legalization continues to increase globally, researchers are ...

As more patients report using cannabis in a state where medical marijuana is legal, researchers across several disciplines at the University of Oklahoma Health Sciences are uncovering insight into the ...

A study examined the cannabis compound tetrahydrocannabivarin (THCV) and found that it can potentially increase motivation and energy. The clinical study indicated that THCV produces these effects ...