A new study links higher weekly THC intake to an increased risk of cannabis use disorder in young people. Researchers suggest establishing clearer limits to help guide safer use, similar to standard ...

Is it better to kick back with a beer or try some edibles containing THC (tetrahydrocannabinol, the ingredient in cannabis that gives you a "high")? Science has some, but not all, of the answers.

A startling shift has occurred in the United States—from use of alcohol to use of cannabis, THC, and cannabis-infused beverages. The percentage of drinking adults in the US has been dropping since ...