On the evening of Thursday, Dec. 17, Kevin Sabet was working on what he believed would be a bombshell.

Medical marijuana treatment cut the frequency of migraines in a month by more than half, the researchers reported.

The reduction in migraine frequency was "statistically and clinically significant," according to the researchers.

Migraine attacks can be lessened by medical marijuana, according to a new study conducted by researchers from the Skaggs School of Pharmacy and Pharmaceutical Sciences at the University of Colorado Anschutz Medical Campus.

Changes to marijuana policies may extend much deeper than popularly publicized medicinal and economic benefits, according to a new UW study.

Katarina Guttmannova, Ph.D. in experimental and developmental psychology and principal investigator in the Social Development Research Group at the UW, along with fellow researchers and the Center for the Study of Health and Risk Behaviors, recently published a study titled “Impacts of Changing Marijuana Policies on Alcohol Use in the United States.”

A Washington state House bill wants to create a pilot program for a legal marijuana home-delivery service in Seattle. 

Here’s how it would work. 

The pilot program proposed by state legislators would allow five existing licensed recreational marijuana stores in Seattle to offer delivery services to Washington state residents over the age of 21, according to Mayor Ed Murray’s office. The pilot program would also provide a framework for delivery requirements, employee training and enforcement. 

The bill’s first reading was January 12.

Here’s the reason behind it, according to the mayor.  

As the reality of legalized non-medical marijuana looms large, Canadians want to know if it's as dangerous as cigarettes. 

Or is pot actually "infinitely worse," as former Prime Minister Stephen Harper famously declared during the recent federal election?

It's neither, science now asserts. In fact, Harper couldn't have been more wrong - at least in terms of pot's purported threat as a deadly carcinogen. So suggests the U.S. government's National Cancer Institute (NCI), which even claims that cannabis can actually combat the risk of cancer.

BOULDER, Colorado, January 19, 2016 /PRNewswire/ -- Surna Inc. (OTCQB: SRNA), a technology company that engineers state-of-the-art equipment for controlled environment agriculture ("CEA") with expertise in cannabis cultivation, announced today it has secured a contract for approximately $725,000 with Las Vegascultivator Cloud 9 Wholesale.

Under the terms of the agreement, Surna will provide their proprietary climate control technology to the cultivation facility for the single-phase project. The Cloud 9 Wholesale facility covers 30,000 square feet, which will require approximately 550 tons of cooling equipment for cultivation climate control.

Seattle's medical marijuana dispensaries are scrambling after receiving a 14-day notice from the state Liquor and Cannabis Board.

The CPC in Georgetown has served thousands of patients since 2010. It works with hospitals, specializing in hard-to-find treatments for chronic disease, cancer, seizures and PTSD.

"We were always going to do this stuff anyways," founder Jeremy Kaufman said while pointing to new security cameras.

Kaufman is making a lot of changes to his building, adding new security cameras, constructing new walls, removing doorways, and clearing out his basement filled with cannabis plants. It's all part of applying for a new marijuana retail license, required by legislation that's combining medical and recreational pot under one regulatory system.

Nearly two dozen states have legalized marijuana for medical use; four states, as well as Washington, D.C., now allow the sale of recreational cannabis to adults – and many more states are considering doing the same. Nevada already has a measure that would legalize pot on its November ballot, California is in the process of crafting its own initiative, and Vermont's governor may allow legislators to make the move without even taking a vote to the people.

Oklahoma and Nebraska say legal marijuana is like state-authorized pollution.