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posted by martyb on Wednesday March 20 2019, @04:36PM   Printer-friendly
from the blunt-message dept.

Daily Marijuana Use And Highly Potent Weed Linked To Psychosis

Weed use is taking off as more states move to legalize it. And with all the buzz over medical marijuana, it's starting to gain an aura of healthfulness. But there are some serious health risks associated with frequent use. One of the more troubling ones is the risk of having a psychotic episode.

Several past studies have found that more frequent use of pot is associated with a higher risk of psychosis, that is, when someone loses touch with reality. Now a new study published Tuesday [open, DOI: 10.1016/S2215-0366(19)30048-3] [DX] in the The Lancet Psychiatry shows that consuming pot on a daily basis and especially using high potency cannabis increases the odds of having a psychotic episode later.

[...] The study also shows that three European cities — London, Paris and Amsterdam — where high potency weed is most commonly available actually have higher rates of new cases of psychosis than the other cities in the study. [...] The researchers identified 901 people aged 18 to 64 who were diagnosed with their first episode of psychosis between May 2010 and April 2015, at a mental health facility anywhere in 11 cities, including London, Paris, Amsterdam, Barcelona, other cities across Europe, and one site in Brazil.

The researchers then asked these individuals and a control group of 1,200-plus other healthy people about their habits, including their use of weed. "We asked people if they used cannabis, when did they start using it and what kind of cannabis," explains study author Marta Di Forti, a psychiatrist and clinician scientist at King's College London. People reported the names of weed strains they used, like skunk in the U.K., or the Dutch Nederwiet, which allowed the researchers to identify the THC content in each product through data gathered by the European Monitoring Center for Drugs and Drug Addiction and national data from the different countries.

The study found that those who used pot daily were three times more likely to have a psychotic episode compared to someone who never used the drug.

Related: Media Leaps to Questionable Conclusions from Study on the Effects of Marijuana on the Brain
Marijuana - Both Sides of the Story
Study Finds That Legalized Medical Cannabis Led to a Decline in Medicare Prescriptions
New Attorney General Claims Legal Weed Drives Violent Crime; Statistics be Damned
World Health Organization Clashes With DEA on CBD; CBD May be an Effective Treatment for Psychosis


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  • (Score: 0) by Anonymous Coward on Thursday March 21 2019, @03:14AM (1 child)

    by Anonymous Coward on Thursday March 21 2019, @03:14AM (#817681)

    Great Scott! A time traveling substance abuse disorder!

    So, when I had these same symptoms growing up in a sweetly abusive family (sorta Calvinist but not) and even after escaping them, it was caused by my future use of cannabis. Do you propose BTTF/ST/Journeyman temporal mechanics or John Titor/Terminator temporal mechanics? It's important to know which so we can break the stable time loop and end the predestination paradox.

  • (Score: 2) by takyon on Thursday March 21 2019, @04:16AM

    by takyon (881) <reversethis-{gro ... s} {ta} {noykat}> on Thursday March 21 2019, @04:16AM (#817711) Journal

    Journeyman might require its own category. If you had a jumpsuit at the ready you seemed to be OK (RIP Pegasus Device). Plus they had that historical log 200 million years in the past. Probably doesn't make any damn sense if you delve into it.

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