The researchers found changes to the volume, shape and density of those brain regions. But more studies are needed to determine how those changes may have long-term consequences and whether they can be fixed with abstinence, Beiter said.
"Our hypothesis from this early work is that these changes may be an early sign of what later becomes amotivation, where people aren't focused on their goals," he said.
The study, which was funded in part by the National Institute on Drug Abuse and the White House Office of National Drug Control Policy
THE DRUG IT CHANGES YOUR BRAIN. IT MAKES YOU LAZY
so.. people who were living a couple hundred years ago were never really reaching their full brain potential!?!?!