Does extended cannabis use play a role in psychosis?

Related Story: What drove a mother to kill eight kids? When Cairns mother Raina Thaiday killed eight children in 2014 she had been clean of cannabis for months, but a psychiatrist found her prior long-term use may have trigged the violent schizophrenic episode. There is a widely held view within the medical and social work community in Australia that there is a link between extended use of cannabis and psychosis. While most research is careful not to draw causal links, a study by the University of Queensland that followed more than 3,800 21-year-olds for almost three decades revealed individuals who…
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