The federal government cautions that the drug can affect brain development in both teens and fetuses.

After years of stalling, the agency says it plans to provide notice on pending applications from growers—but only after it establishes new regulations for suppliers.

A brazier and charred stones, thought to be part of burial ceremonies, preserve signs that people used the drug thousands of years ago.

Frequent use of high-strength cannabis may increase the risk of mental health problems, according to a large-scale epidemiological study.

Rodent and human studies have revealed a multitude of effects starting during gestation and lasting into adulthood.

A Novartis subsidiary is partnering with a Canadian cannabis company to sell medical marijuana worldwide.

Offspring of rats exposed to vaporized cannabis had difficulty switching strategies to get a sugar reward, according to a study presented at the Society for Neuroscience conference.

The country is the second in Africa to permit cannabis cultivation, but months after approval there’s been little uptake by farmers and no scientific proposals.

Epidiolex, a cannabis-derived medicine for epilepsy, will prompt federal regulatory changes that could crack open access to study the plant.