Young, casual marijuana smokersexperience potentially harmful changes to their brains, with the drug altering regions of the mind related to motivation and emotion, researchers found. [s]Forbes[/s] reports that the study published in the [s]Journal of Neuroscience[/s] differs from many other pot-related research projects that are focused on chronic, heavy users of cannabis. The collaborative effort between [b]Northwestern University’s[/b] medical school, [b]Massachusetts General Hospital[/b], and [b]Harvard Medical School[/b], showed a direct correlation between the number of times users smoked and abnormalities in the brain. Medical pot is allowed in 20 US states.
[link url=http://www.forbes.com/sites/alicegwalton/2014/04/15/even-recreational-marijuana-may-be-linked-to-brain-changes]Full Forbes report[/link]
[link url=http://www.jneurosci.org/content/34/16/5529.abstract]JN Abstract[/link]