Shared mechanisms between marijuana and other substances "may contribute to the association of cannabis use with (substance use disorders) but not with most other disorders examined," they explain.

If current trends continue, marijuana use among high school seniors could soon become more common than cigarette smoking, says Nora Volkow, director of the National Institute on Drug Abuse. Q.

Synthetic marijuana is very different from tetrahydrocannabinol (THC). It’s called K2, synthetic marijuana, and it has caused a cluster of deaths in Chicago. The Chicago Tribune reported three ...

The National Academies of Sciences, Engineering, and Medicine has released a massive report that summarizes top-tier scientific research into the health effects of smoking marijuana. It's an ...

On Thursday the U.S. government announced that marijuana would continue to be classified as a Schedule 1 drug, meaning it has a high potential for abuse. However, the feds are allowing more ...

States are legalizing marijuana even though there's no clear understanding of its impact on health. The drug hasn't been subjected to the kind of rigorous medical research that would find that out.

This is about the exact opposite of what you'd expect from marijuana use, but Gruber reminded the audience that many of these patients are in chronic pain, which we know detracts from executive ...

Health Policy What marijuana reclassification means and the effects of rescheduling Reclassifying marijuana from a Schedule I substance to Schedule III would mark a historic shift in federal ...

That apple cart has already been shaken by a growing body of research that suggests marijuana’s psychoactive ingredients may enhance the pain-killing effects of opiate drugs, allowing patients ...