What's your source for this? Where's your evidence??
Fried P,Watkinson B, James D, Gray R. Current and former marijuana use: preliminary findings of a longitudinal study of effects on IQ in young adults. CMAJ 2002;166:887-891. [Decline in IQ score was found in subjects who smoked more the 5 joints per week.
Solowij N, Stephens RS, Roffman RA, Babor R, Kadden R, Miller M, Christiansen K, McRee B, Vendetti J. Cognitive function of long-term heavy cannabis users seeking treatment. JAMA2002;287:1123-1131 [long term use was an average of 23.9 years, Long term users showed problems with memory and attention, word retention, learning. These findings persist beyond the period of intoxication and worsen with increasing years of use.]
Like I said, weed is gud 4 the brane.
Friedman AS, Glassman K, Terras. Violent Behavior as Related to Use of Marijuana and Other Drugs. Journal of Addictive Diseases 2001;20:49-70 [Marijuana/ crime. Frequency of use of marijuana was found to be associated with greater likelihood to commit weapons offenses, and the only other drug this was found with was alcohol. Marijuana was associated with commission of attempted homicide/reckless endangerment offenses, and marijuana along with cocaine were the only drugs associated with frequency of being involved in selling drugs. ]
Weed makes U tuff.