cannabis

When researchers convinced a group of young people to stop smoking pot, their cognition quickly improved. This adds to research warning against teen pot use, despite marijuana's growing acceptance.

As marijuana gains popularity among people 65 and older, geriatricians call for more research on how it affects elderly patients. Shifts in metabolism as we age can intensify any drug's side effects.

The giant influx of cash from Constellation Brands is the largest strategic investment in the cannabis market to date. It nearly quadruples the alcohol company's stake in Canopy Growth to 38 percent.

For the first time, the FDA has approved a drug containing CBD, an extract of marijuana. This move could pave the way for more research into medical uses for the marijuana extract.

The rural region has a long history of cultivating cannabis that goes back 150 years, and on Tuesday the newly formed local government approved using the leaf as the official government symbol.

About half of oncologists recommend medical marijuana to patients, though most feel ignorant of its proper medical use.

John Boehner used to oppose all uses of marijuana but said on Wednesday that his thinking "has evolved." He said the drug should be available to, among other things, help ailing veterans.

The Mexican tourism secretary said travel destinations like Cancún and Baja California Sur should legalize marijuana.