Heavy cannabis use may negatively impact a person’s working memory, according to the largest study on this subject to date.

Heavy weed use appears to dull the brains of young adults, particularly affecting their short-term working memory, a new study suggests. MRI scans showed less brain activation in heavy tokers performing tasks that tested their ability to temporarily hold a limited amount of information at the ready for immediate mental use,

33,530 people played the daily Crossword recently. Can you solve it faster than others?33,530 people played the daily Crossword recently. Can you solve it faster than others?

Your brain may not bounce back as quickly as you think after you smoke weed. A groundbreaking new study suggests that heavy marijuana use could leave lasting marks on your memory, long after your last hit.