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Paul Armentano

Paul Armentano

Posted: March 3, 2010 11:31 AM

Weeding Through the Hype: Interpreting the Latest Warnings About Pot and Schizophrenia

What's Your Reaction:

Once again members of the mainstream media are running wild with the notion that marijuana use causes schizophrenia and psychosis.

To add insult to injury, this latest dose of reefer rhetoric comes only days after investigators in the United Kingdom reported in the prestigious scientific journal Addiction that the available evidence in support of this theory is "neither very new, nor by normal criteria, particularly compelling." (Predictably, the conclusions of that study went all together unnoticed by the mainstream press.)

Yet today's latest alarmist report, like those studies touting similar claims before it, fails to account for the following: If, as the authors of this latest study suggest, cannabis use is a cause of mental illness (and schizophrenia in particular), then why have diagnosed incidences of schizophrenia not paralleled rising trends in cannabis use over time?

In fact, it was only in September when investigators at the Keele University Medical School in Britain smashed the pot = schizophrenia theory to smithereens. Writing in the journal Schizophrenia Research, the team compared trends in marijuana use and incidences of schizophrenia in the United Kingdom from 1996 to 2005. Researchers reported that the "incidence and prevalence of schizophrenia and psychoses were either stable or declining" during this period, even the use of cannabis among the general population was rising.

That said, none of this is to suggest that there may not be some association between marijuana use and certain psychiatric ailments. Cannabis use can correlate with mental illness for many reasons. People often turn to cannabis to alleviate the symptoms of distress. One study performed in Germany showed that cannabis offsets certain cognitive declines in schizophrenic patients. Another study demonstrated that psychotic symptoms predict later use of cannabis, suggesting that people might turn to the plant for help rather than become ill after use.

Of course, even if one takes the MSM's latest 'sky is falling' scenario at face value, health risks connected with pot use -- when scientifically documented -- should not be seen as legitimate reasons for criminal prohibition, but instead, as reasons for the plant's legal regulation.

For instance, as I told AOL News earlier today: "We don't outlaw peanuts because a small percentage of people have allergic reactions. We educate the community, we regulate where and when peanuts can be exchanged. That seems like it ought to apply to marijuana, too."

To draw another real world comparison, millions of Americans safely use ibuprofen as an effective pain reliever. However, among a minority of the population who suffer from liver and kidney problems, ibuprofen presents a legitimate and substantial health risk. However, this fact no more calls for the criminalization of ibuprofen among adults than do these latest anti-pot allegations, even if true, call for the current prohibition of cannabis.

Placed in this context, today's warnings latest do little to advance the government's position in favor of tightening prohibition, and provide ample ammunition to wage for its repeal.

 
 
 
Once again members of the mainstream media are running wild with the notion that marijuana use causes schizophrenia and psychosis. To add insult to injury, this latest dose of reefer rhetoric comes o...
Once again members of the mainstream media are running wild with the notion that marijuana use causes schizophrenia and psychosis. To add insult to injury, this latest dose of reefer rhetoric comes o...
 
 
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02:53 PM on 03/10/2010
Paul, you've put together a very reasoned response to a very unreasoned media frenzy. Note one further blow to the overdone reporting:

The study does not evaluate the amount of cannabis used over time, or even how many years cannabis was used, but only how long it has been since cannabis was used for the FIRST time. The authors state:

“The main predictor variable did not capture cumulative exposure to cannabis. It is feasible that some cohort members may have started cannabis use at a relatively young age and then stopped. These subjects would have been allocated the same duration since first cannabis use as those with early and persistent usage.”

In other words, a person who used cannabis only one time, six years ago, was counted as a longer-term user than someone who uses cannabis every day but who started only three years ago. Failure to account for actual length of use or quantity of use, rather than merely passage of time since first use, significantly undermines the value of this research.

Keep up the good work.
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HUFFPOST SUPER USER
thinkingwomanmillstone
great, green, globs of greasy grimey GOPerspeak.
02:40 PM on 03/04/2010
Prohibition didn't work with alcohol, it just gave rise to organized crime. It's not working with other drugs either, it's just making the drug cartel rich, filling our prisons and bankrupting our budgets. It's time to legalize drugs and switch to treatment , including maintenance programs. It can't be worse than what's going on now.
10:49 AM on 03/04/2010
This song sounds familiar.

Play faster! . . . PLAY FASTER!!!!!
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worldlyhick
10:45 AM on 03/04/2010
Unfortunately many researchers word their conclusions to support the agenda of those who supplied the funds. I agree with this article that if there is any connection between cannabis and mental issues, it is a result of attempts to self-medicate by people who are seeking relief, and probably finding it, with cannabis.

The issues are that the continued prohibition of cannabis leads to human rights violations of all kinds and a storm trooper mentality in some of the Law Enforcement community. People have been criminalized and worse in the name of cannabis prohibition. In the meantime we lose a source of a potentially valuable industry.
10:28 AM on 03/04/2010
I keep seeing headlines talking about "skunk" they say its higher in thc, but it is also higher in terpenes, that is what gives certain types of pot the skunk scent. i guess they are taking a generic term about smelly pot and making it into something new that causes insanity. These researchers and journalists should be called on the carpet and asked what they define as skunk. Is it higher thc or is it higher in terpenes or both? Researchers are allowed to develop terminology, but they need to explain it better.
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Beka13
Veni vidi vici
08:14 AM on 03/04/2010
Alcohol turns people into monsters and its legal.
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tusu2
07:21 AM on 03/04/2010
Actually, much of the hype is in this article, as it does not give a balanced, accurate or helpful view of the issues. There are very important issues about recreational drugs and mental illness. Many people attempt to deal with emerging mental illness by drinking or drugging, and there is little doubt based on research that this does not help, and that it very often worsens both the illness and the overall situation. Is pot the ROOT cause of a mental illness that is largely genetic and is 'in place' in the brain before birth? Perhaps not, but research does NOT show that recreational drugs and alcohol improve such things - quite the contrary. Additionally, after many years, I think it's the people who are most ill who drink and do recreational drugs - they stand the most to benefit from early intervention and appropriate treatment.
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10:36 PM on 03/03/2010
I'm guessin' this site won't really heat up til midnight or later, so I'll leave you with my philosophy... Use drugs if you must... just don't let drugs use you.
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10:17 PM on 03/03/2010
Sorry, "reform". That's twice tonight. Quitting now.
10:04 PM on 03/03/2010
end the insanity! end the war on marijuana and its entire supply and demand chain!
collect billions in taxes!
save billions in law enforcement & incarceration costs!
save millions not forcing responsible marijuana users into rehab centers they do not wish to be in!
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10:15 PM on 03/03/2010
Until we can stop lawyers from using drugs as the scapegoat for their clients' psychopathic actions, refom is impossible.
10:28 PM on 03/03/2010
come on, how many lawyers use marijuana as a scapegoat for their crimes? thinkb4uspeak!!!
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09:53 PM on 03/03/2010
Gotta chime in on this one... OK, just a theory, mind you, but, OK; I believe all addictions are prenatal, and glandular based. For example, if Mom smokes during your gestation, your body is fed with with nicotine, which then inhibits the natural developement of the glands which would produce the same or simular enzymes. Therefore, you grow up craving these chemicals and ingest whatever provides them. You NEED a smoke to rebalance your metabalism. It's like craving a certain food... your body tells you what it needs. "Yo, little calcium here." is what makes chalk taste good, sometimes.
Citizen54
Conservatism is a con job!
07:31 PM on 03/03/2010
The people in big media are drunk on booze, power, and the almighty greenback dollar bill.

Don't believe a word they say.
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PatA
Juan Martinez! Rock Star!
06:46 PM on 03/03/2010
Let's not call them MSM anymore. "Once again members of the mainstream media are running wild with the notion that marijuana use causes schizophrenia and psychosis." Let's call them BBWs.
Big Business ho res.
06:32 PM on 03/03/2010
More fodder for the anti-pot crowd to misrepresent.... Legalize it already....
06:12 PM on 03/03/2010
This study is nothing new. Cannabis was outlawed in 1937 after the much-hyped propaganda film Reefer Madness made the claim that smoking "Marihuana" caused rape, incurable insanity and mass murder among America's youths.

This supposed link between the evil Cannabis plant and psychoses didnt effect the US government's decision to legalize it again in 1942 to aid the war effort, and urge 16-year olds in highschool 4-H clubs to grow from a half acre to two acres per student.

So, like during World War II, despite any of Marijuana's effects on the human brain, we should all be doing our part for the soldiers overseas and growing more pot. This is also a proven way to greatly reduce the unemployment rate.