NIDA's Dr. Nora Volkow Discusses Marijuana's Effects on the Brain, Body & Behavior

Smart Approaches to Marijuana (SAM) - A good site for most marijuana related issues; many of their fact sheets and talking points can be found below.

Warning: ABC News reports that Drug Enforcement Administration (DEA) agents in California are cracking down on the popular new drug known as “wax,” a distilled version of marijuana that is said to be so potent that a single hit will keep users high for more than a day. 

“There is no weed out there that possesses the punching power that the wax does,” an undercover DEA informant who asked to remain anonymous told ABC News’ “Nightline.” “And it’s like smoking 20 joints of the best grade of weed that you have into one hit of the wax.”

Making the drug is risky. Butane, a substance so flammable that any spark can set off an explosion, is used to strip out the THC, the chemical in marijuana that gets a person high. But law enforcement says the process of making wax is not the only thing dangerous about it.

“We have seen people have an onset of psychosis and even brain damage from that exposure to that high concentration of THC,” said Gary Hill, assistant special agent in charge at the DEA's San Diego office. “Our concern is that this is going to spread before we get it under control.”

There is so much information (and misinformation) about marijuana. Here are some of the more science based reports:
  July 3, 2015 (Science Friday segment)

  June 23, 2015

Marijuana May Hurt The Developing Teen Brain

    March 03, 2014

Center for Substance Abuse Research, March 3, 2014, Vol. 23, Issue 8 (Rev.)

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