HCR Update from Mark Sanna: Cannabis use Linked to Sleeping Problems

HCR Update from Mark Sanna: Cannabis use is linked to an increased likelihood of sleeping problems, according to a new study from researchers at the University of Pennsylvania in Philadelphia and presented at the SLEEP 2014 meeting. Comparing the scans with brain scans of individuals with little or no history of marijuana use, the researchers found that the area of the brain responsible for reward processing - the nucleus accumbens - was larger and had an altered shape and structure in the marijuana users. The amygdala - a region of the brain involved in emotion - also displayed abnormalities in marijuana smokers, with the abnormalities being greater the more marijuana was smoked by the participants.