#Marijuana use is on the rise with #cannabis becoming legal and more widely accessible in more places. It's also losing a lot of the stigma that has been attached to it in the past and this worries some people..Some scientists and healthcare professionals are concerned that cannabis use during one's adolescent years could result in profound changes in the developing teenage brain. -- with a detrimental effect on #IQ, a metric that's commonly used to gauge and quantify intelligence.In this video, I look at the research and discuss the IQ and structural brain changes that were observed in frequent/dependent cannabis users. I also elaborate on the two major active ingredients (cannabinoids) found in weed plants; CBD and THC and discuss some of the differences that exist between them.Video Link