The rise of legal marijuana seems to be fueling a spike in the number of pets that become unhappily high off of pilfered treats. The dose is rarely fatal, but it can be a buzzkill.
Ohio will vote this fall on whether to legalize marijuana. The measure allows 10 growing sites; 10 groups of big investors already have dibs. Some would-be pot proponents are crying foul.
Does legalization of marijuana mean more drivers will have the drug in their system? New data from Washington state says yes, but does that mean pot has caused more accidents? The answer is unclear.
Attempts to regulate chemicals in marijuana production often hit another problem: The plant's wide range of uses sets it apart from many traditional food crops.
The pot brownie you bought to help your sleeping disorder may have a lot less active ingredient than promised, a study finds. And a review of other studies finds scant evidence of medical benefits.
When it comes to reefer madness, nobody can top a group of traditional hunter-gatherers in the Congo Basin. About 70 percent of men smoke cannabis. The drug could be doing more than getting them high.
Regulators in the 23 states where medical or recreational marijuana is allowed are having a tough time making sure pot buyers don't ingest harmful pesticides.
Aficionados of fine weed describe the effects as if they're talking about vintage wine. But how to know which medicinal or recreational strain to choose? This field guide cuts through the haze.
A blind man who was sold actual grass instead of the grass he was looking for has told a French court that it was he, and not his guide dog, who bit a deceitful dealer.