According to researchers at the Center for BrainHealth at The University of Texas, long term marijuana use disrupts the brain’s natural reward processes. Researchers showeded, for the first time, with functional magnetic resonance imaging, that long-term marijuana users had more brain activity in the mesocorticolimbic-reward system when presented with cannabis cues than with natural reward… Read more

The complex biochemistry of cannabis and how it affects the brain is only beginning to be understood. Lucy Troup, assistant professor of psychology at Colorado State University, has set out to answer specifically how, if at all, cannabis use affects one’s ability to process emotions. A new study published in the journal PLOS ONE suggests… Read more

Although teens are well versed in the risks of smoking cigarettes, they are much less certain whether marijuana or e-cigarettes are harmful, a new study by researchers from Stanford University School of Medicine reports. Adolescents are getting clear messages from their teachers, families, peers and the media concerning the harms of cigarette smoking, but receive… Read more

Teenagers who smoked marijuana daily for about three years had an abnormally shaped hippocampus, according to a new study. They also performed poorly on long-term memory tasks. The hippocampus is important to long-term memory, also known as episodic memory, which is the ability to remember autobiographical or life events. The brain abnormalities and memory problems… Read more

Young adults who have used cannabis or marijuana for a longer period of time appear more likely to have hallucinations or delusions or to meet criteria for psychosis, according to a report in the Archives of General Psychiatry. Previous studies have identified an association between cannabis use and psychosis, according to background information in the… Read more