bitcoingaq.blogg.se

Cnn lite
Cnn lite










cnn lite

None of the users reported any problems with school, work, legal issues, parents or relationships, according to Dr. The median use was six joints a week, but there were four people who said they smoked more than 20 joints a week. More than a third of the group - seven of the 20 - only used pot recreationally once or twice a week. "Those differences were exposure-dependent, meaning those who used more marijuana had greater abnormalities." Jodi Gilman, lead author and a researcher in the Massachusetts General Center for Addiction Medicine. "I think the findings that there are observable differences in brain structure with marijuana even in these young adult recreational users indicate that there are significant effects of marijuana on the brain," says Dr. They analyzed volume, shape and density of grey matter - where most cells in brain tissue are located. Researchers examined regions of the brain involved in emotional processing, motivation and reward, called the nucleus accumbens and the amygdala. All were given high-resolution MRIs, and users and non-users' results were compared. The marijuana smokers were asked to track their cannabis use for 90 days. Twenty of them smoked marijuana at least once a week. Using different types of neuroimaging, researchers examined the brains of 40 young adults between the ages of 18 and 25 who were enrolled in Boston-area colleges. And according to the researchers, the degree of abnormalities is based on the number of joints you smoke in a week. The study, published in the Journal of Neuroscience, is the first to link casual marijuana use to major changes in the brain. If you thought smoking a joint occasionally was OK, a new study released Tuesday suggests you might want to reconsider.












Cnn lite