...ignorance is NOT bliss........here are the facts Lynn...............

my main gripe is this..........weed and trauma do not mix.....(cognitive)

on my last job(many years ago)......I worked with a pothead.......he could not do anything right, let alone,remember the tasks I immediateley assighned him.....thats why he could not do anything right....he was all smoked up and could not remember.......and I asked very nicely to not smoke dat crap on the job..........he stayed smoked up all day/everyday and clearly made my job more difficult..........

I believe the answer to your question is no........its about 1/2 way down the page.................

btw.....I am an ex-pothead


http://www.drugpolicy.org/marijuana/factsmyths/

Myth: Marijuana Impairs Memory and Cognition. Under the influence of marijuana, people are unable to think rationally and intelligently. Chronic marijuana use causes permanent mental impairment.
Fact: Marijuana produces immediate, temporary changes in thoughts, perceptions, and information processing. The cognitive process most clearly affected by marijuana is short-term memory. In laboratory studies, subjects under the influence of marijuana have no trouble remembering things they learned previously. However, they display diminished capacity to learn and recall new information. This diminishment only lasts for the duration of the intoxication. There is no convincing evidence that heavy long-term marijuana use permanently impairs memory or other cognitive functions.