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> Why is it so hard for many HN readers to consider that cannabis might cause schizophrenia? Currently, approximately 129M US adults have used cannabis and the
by Maursault 5y ago
> Why is it so hard for many HN readers to consider that cannabis might cause schizophrenia?
Currently, approximately 129M US adults have used cannabis and there are 3.2M schizophrenics in US. 16% of schizophrenics use cannabis, while 27% have a history of using cannabis. This makes any correlation, if there is one, extremely difficult to see, because currently, at best, only 864K schizophrenics of 3.2M have ever used cannabis. This means, if there is actually a causation, then using cannabis entails a risk of 1 in 149.3 of causing schizophrenia, which seems high until you consider schizophrenia affects 1 in 300 people worldwide. So it is possible that using cannabis doubles risk of schizophrenia, but we wouldn't say it caused it. 100% of schizophrenics drink water... why isn't drinking water researched as a cause of schizophrenia?
- bjourne 5y agoThese arguments are shoddy and you know that. If it was so difficult to demonstrate a correlation then so many studies wouldn't have been able to do just that.
- Maursault 5y agoNot an argument, just answering the question. Also, > If it was so difficult to demonstrate a correlation then so many studies wouldn't have been able to do just that. employs a fallacy, assuming the conclusion aka begging the question. But that's ok, because I'm really not arguing any position.