Yes, Marijuana has been proven to reduce your short memory span _While you are under the influence of the herb_. It's not like everytime you smoke, you're dumber, which is sort of what the gov't implies.
Hempamasta Reviewed by Hempamasta on . weed's effect on short term memory & concentration... Does weed actually effect our memory & ability to concentrate or it a put off by the scientists? Rating: 5