Updates

A new study by Massachusetts General Hospital (MGH) has found using medical marijuana to treat pain, anxiety and depression failed to improve these symptoms while doubling the risk of developing cannabis use disorder. The study, published in the journal JAMA Network...

A large study by U.S. highway safety regulators found that more than half the people injured or killed in traffic crashes had one or more drugs, or alcohol, in their bloodstreams. Also, just over 54% of injured drivers had drugs or alcohol in their systems, with...

An animal sedative that’s harmful to human health is showing up in street drugs across the United States, and it appears to be spreading. The drug, called xylazine, causes severe skin wounds and knocks users out for hours at a time, leaving them vulnerable and...

Not all marijuana is created equal. We know delta-9-tetrahydrocannabinol (THC) is the chemical responsible for the euphoric effects of marijuana, but it’s far from the only substance in there. The second most important compound in cannabis is cannabidiol (CBD), and...

Scientists may have discovered a more accurate tool for measuring cravings. Employing a machine learning algorithm, an international team of scientists has identified a brain signature that, in their experiments, distinguished people with substance abuse disorders...