3 ms·

Sorry but I can't say I agree. Cannabis has a noticeable effect on intelligence and cognition. This is scientific fact. It has nothing to do with succeeding ec

Sorry but I can't say I agree. Cannabis has a noticeable effect on intelligence and cognition. This is scientific fact. It has nothing to do with succeeding economically or getting a good job. That is a separate thing from "being intelligent."

herbst 5y ago
I did IQ tests at 16 and 28 and had pretty much the same result. And that's IQ my social intelligence definitely got better, given that I am a slightly autistic anti social to begin with. The only recent study I find that mentions a lower IQ explicitly talks about teenager use and that it has non or little effect on grown up brains in terms of intelligence However we are going even more offtopic here. We can agree to not agree :)
- ceilingcorner 5y ago
  The first google result: > January 28, 2021 > Frequent cannabis use by young people linked to decline in IQ > A study has found that adolescents who frequently use cannabis may experience a decline in Intelligence Quotient (IQ) over time. The findings of the research provide further insight into the harmful neurological and cognitive effects of frequent cannabis use on young people. > "Previous research tells us that young people who use cannabis frequently have worse outcomes in life than their peers and are at increased risk for serious mental illnesses like schizophrenia. Loss of IQ points early in life could have significant effects on performance in school and college and later employment prospects," commented senior author on the paper Professor Mary Cannon, Professor of Psychiatric Epidemiology and Youth Mental Health, RCSI. https://www.sciencedaily.com/releases/2021/01/210128134755.htm https://www.sciencedaily.com/releases/2021/01/210128134755.h... This is not really something one can "agree to disagree" about, unless you wish to dispense of the entire scientific method.
  - herbst 5y ago
    Did you just agree that it does usually not affect adults? Just to clearify, I, and I think most cannabis smokers, by now know that it was stupid to start young. But these studies do not imply a healthy adult loosing IQ points somehow by smoking weed
    - ceilingcorner 5y ago
      Is that what I wrote? No. The evidence shows that users of cannabis that began as teenagers have negative IQ consequences as adults. > But these studies do not imply a healthy adult loosing IQ points somehow by smoking weed It's unclear if starting as an adult has the same effect.
      - herbst 5y ago
        If it's unclear or you have any reason to suggest it, why would you link a study that only looked into teenagers then? I am done with this convo, and happily will read into his later, but so far I have no idea where you are getting this idea from.
        ceilingcorner 5y ago
        It doesn't seem like a stretch to me to suggest that the same (heavily documented and confirmed) effects apply to first-time adult users. Certainly alcohol use affects teenagers' brains more than adults, yet still does affect adults. This seems like common sense. Most substances behave this way. Likewise, the studies all track teenagers over decades, who then became adults. This is the most common usage pattern.
        herbst 5y ago
        Now it's common sense and whatnot without any scientific study backing it. Mkey. Because most substances behave this way and alcohol and weed has so much in common. Obviously Dude stop
        ceilingcorner 5y ago
        This took me 30 seconds to find. Blest-Hopley et al. [21] showed that both adolescent and adult cannabis users exhibited deficits compared to controls but in different brain areas, suggesting age-related risks at both developmental periods [21]. Additionally, Scott et al. [19] found small but significant effect sizes for the relationship between heavy cannabis use and cognition in both adolescents and young adults. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6394430/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6394430/ I really don't know what you are trying to argue for, other than to just have your already-existing opinions validated. You are arguing that for people that only use cannabis first as an adult, it has no negative effect? Because it is quite clear that usage as a teenager has negative IQ effects later on.
  - IntrepidWorm 5y ago
    These are fair points to bring up and discuss, however: 1. Correlation vs. causation is unclear. Is the decline in IQ due to the smoking, or did smoking coincide or even result from other life factors that impact neurological development? Drug use is common among those with certain psychological illnesses, but it may be a coping mechanism as opposed to the cause, or otherwise differently related than what you are suggesting. 2. IQ testing is not a robust measure of intelligence or capability. There are plenty of fantastic criticisms explaining the problems with IQ testing being used in academia. At best, IQ scores are simply a measure of how well subjects perform with the spatial reasoning logical processing methods used in IQ tests, and not wholly representative of the intelligence or capability of the subject.

herbst 5y ago

I did IQ tests at 16 and 28 and had pretty much the same result. And that's IQ my social intelligence definitely got better, given that I am a slightly autistic anti social to begin with. The only recent study I find that mentions a lower IQ explicitly talks about teenager use and that it has non or little effect on grown up brains in terms of intelligence However we are going even more offtopic here. We can agree to not agree :)

ceilingcorner 5y ago
The first google result: > January 28, 2021 > Frequent cannabis use by young people linked to decline in IQ > A study has found that adolescents who frequently use cannabis may experience a decline in Intelligence Quotient (IQ) over time. The findings of the research provide further insight into the harmful neurological and cognitive effects of frequent cannabis use on young people. > "Previous research tells us that young people who use cannabis frequently have worse outcomes in life than their peers and are at increased risk for serious mental illnesses like schizophrenia. Loss of IQ points early in life could have significant effects on performance in school and college and later employment prospects," commented senior author on the paper Professor Mary Cannon, Professor of Psychiatric Epidemiology and Youth Mental Health, RCSI. https://www.sciencedaily.com/releases/2021/01/210128134755.htm https://www.sciencedaily.com/releases/2021/01/210128134755.h... This is not really something one can "agree to disagree" about, unless you wish to dispense of the entire scientific method.
- herbst 5y ago
  Did you just agree that it does usually not affect adults? Just to clearify, I, and I think most cannabis smokers, by now know that it was stupid to start young. But these studies do not imply a healthy adult loosing IQ points somehow by smoking weed
  - ceilingcorner 5y ago
    Is that what I wrote? No. The evidence shows that users of cannabis that began as teenagers have negative IQ consequences as adults. > But these studies do not imply a healthy adult loosing IQ points somehow by smoking weed It's unclear if starting as an adult has the same effect.
    - herbst 5y ago
      If it's unclear or you have any reason to suggest it, why would you link a study that only looked into teenagers then? I am done with this convo, and happily will read into his later, but so far I have no idea where you are getting this idea from.
      - ceilingcorner 5y ago
        It doesn't seem like a stretch to me to suggest that the same (heavily documented and confirmed) effects apply to first-time adult users. Certainly alcohol use affects teenagers' brains more than adults, yet still does affect adults. This seems like common sense. Most substances behave this way. Likewise, the studies all track teenagers over decades, who then became adults. This is the most common usage pattern.
        herbst 5y ago
        Now it's common sense and whatnot without any scientific study backing it. Mkey. Because most substances behave this way and alcohol and weed has so much in common. Obviously Dude stop
        ceilingcorner 5y ago
        This took me 30 seconds to find. Blest-Hopley et al. [21] showed that both adolescent and adult cannabis users exhibited deficits compared to controls but in different brain areas, suggesting age-related risks at both developmental periods [21]. Additionally, Scott et al. [19] found small but significant effect sizes for the relationship between heavy cannabis use and cognition in both adolescents and young adults. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6394430/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6394430/ I really don't know what you are trying to argue for, other than to just have your already-existing opinions validated. You are arguing that for people that only use cannabis first as an adult, it has no negative effect? Because it is quite clear that usage as a teenager has negative IQ effects later on.
- IntrepidWorm 5y ago
  These are fair points to bring up and discuss, however: 1. Correlation vs. causation is unclear. Is the decline in IQ due to the smoking, or did smoking coincide or even result from other life factors that impact neurological development? Drug use is common among those with certain psychological illnesses, but it may be a coping mechanism as opposed to the cause, or otherwise differently related than what you are suggesting. 2. IQ testing is not a robust measure of intelligence or capability. There are plenty of fantastic criticisms explaining the problems with IQ testing being used in academia. At best, IQ scores are simply a measure of how well subjects perform with the spatial reasoning logical processing methods used in IQ tests, and not wholly representative of the intelligence or capability of the subject.