Is anybody researching the impact of legalisation of cannabis in Colorado and Washington, US on mental health?
A study in UK (Hamilton et al., 2014) found that in the UK, reclassifying cannabis from a class 'B' to a class 'C' drug lead to a reduction in cannabis related psychosis hospital admissions.
However in Portugal and Holland, legalisation has not increased prevalence of use. In UK studies have also found no overall relationship between increase in use in a population overtime and changes in prevalence of psychotic illness.
It would be interesting to see whether this legalisation has an impact on mental health problems. A lot of variables to consider. I'm wondering whether anybody is planning to do this? Happy to share thoughts on the issue.
I have just begun questioning whether marijuana has detrimental side-effects on either mental or physiological functioning. I can figure out how to send you useful information, if you like?
I'm working on similar research topic in Poland now - how cannabis impact on human cognitive functioning. If you could send me some of this information as well it would be great!
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