Two new Canadian studies are the largest to date looking at death rates and psychosis associated with cannabis use disorder.

Nearly 7 in 10 American marijuana consumers say they plan to spend either more on cannabis or about the same amount in 2025 ...

Smoking the drug increases addiction risks and has severe health consequences for lung function, especially if cannabis is ...

Most states in the United States (38 of 50), the District of Columbia, and three territories have enacted widely divergent laws allowing “medical marijuana,” circumventing the traditional role ...