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Comment by throwaway743 | Hacker News Reader

From the article:

> “However, this is not a study that anyone should look at and say, ‘Jury’s in, and cannabis use causes dementia,’” Myran said. “This is a study that brings up a concerning association that fits within a growing body of research.”

From the study:

> Individuals with acute care due to cannabis use were at lower risk than those with acute care due to alcohol use.

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Difficulty regulating consumption while intoxicated could easily be an effect of whatever underlying condition is resulting in dementia.

I wonder if doing cognitive tests at various levels of intoxication might be a better indicator than under normal conditions.

One likely explanation is that both cannabis and alcohol users abuse substances due to an underlying process that leads to dementia. There might be something that makes you a heavy user AND prone to dementia. But, of course, we can’t say that alcohol or weed are direct causes of the disease.

It's well known that alcoholism can be a direct cause of dementia.

https://en.wikipedia.org/wiki/Korsakoff_syndrome

> Specifically, alcohol intake is negatively associated with global brain volume measures, regional gray matter volumes, and white matter microstructure. Here, we show that the negative associations between alcohol intake and brain macrostructure and microstructure are already apparent in individuals consuming an average of only one to two daily alcohol units, and become stronger as alcohol intake increases.

https://www.nature.com/articles/s41467-022-28735-5

Alcohol is one of the most toxic substances out there, no surprise the risk is higher than cannabis.

Diagnosis: Misaligned incentives correlate with acute miscomprehension

doesn't exactly get the attention and funding they desire with that spin on it does it?

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