Cannabidiol (CBD) seems to reduce the unpleasantness of pain, a finding that surprised the researchers behind a new, first-of-its-kind study.

It's "the biggest blow to the war on drugs to date," said Kassandra Frederique, executive director of the Drug Policy Alliance.

While many people don't think its all that bad, a new study suggests you should lay off while expecting.

A new study on rats suggests that using marijuana as an adolescent "reprograms the initial behavioral, molecular, and epigenetic response to cocaine."

Check out the curriculum for the nation's first cannabis-focused bachelor's program.

Clinical studies are underway. How we treat them moving forward matters.

A new study analyzed more than 1.5 billion opioid prescriptions over eight years.

David Bienenstock has made it his mission to keep the history of cannabis alive.

Veterinarians are concerned. Consumers appear not to be.

While legalization has benefits, a new study suggests it may have one big drawback.

The bill would effectively legalize marijuana at the federal level, while allowing states to draft their own laws.

The downsides of drug abuse are so clear that one would imagine smarter folks would stay away from them. The research suggests otherwise.

A recent report compared the youth marijuana usage rates across the U.S. states, revealing some surprising differences.

That's only counting revenues from taxes, fees, and licenses.

Couples who use marijuana experience greater intimacy.

"Prohibitionist strategy is unsustainable," reads the policy plan.

A recent Colorado study of ER visits is alarming medical professionals.

It increases their brains' gray matter volume.

An out-of-this-world high.

A new report shows how legalizing marijuana nationally would likely be much more effective at curbing drug smuggling than building a border wall.

"We must end the needless and unjust convictions and the debilitating criminal stigma and let's legalize the adult use of recreational use of marijuana once and for all," the governor said.

Altria Group Inc., maker of Marlboro cigarettes, said it's taking a 45 percent stake in Cronos Group, a major Canadian medical and recreational marijuana provider.

Former Attorney General Jeff Sessions imposed stricter guidelines on marijuana policy during his tenure. It's still unclear where his replacement, Matthew Whitaker, stands on the issue.

Voters decided on major changes on issues like marijuana, abortion and Medicaid.

There is a lot of hope in the healing powers of CBD. Unfortunately there's way more hype.

Attention rates, however, remained the same whether smoking or not.

Canadians who've been caught with 30 grams of marijuana or less will soon be able to request those charges to be expunged.

Carl Sagan liked to smoke weed. His essay on why is fascinating.

They cost about $11 and contain 60mg of THC, the main psychoactive component of marijuana, and 10mg of CBD.

Canada's recreational marijuana industry might not be poised to meet demand in the first year of legal sales, according to some experts.