People who increase their cannabis consumption from occasional to daily use could hasten the onset of psychosis. Researchers from Emory University in Atlanta analyzed data from 109 hospitalized patients who were experiencing their first psychotic episode and found that those who had a history of cannabis use and increased to daily smoking experienced both psychotic and pre-psychotic symptoms at earlier ages. It was not whether or not they used the drug in adolescence but how quickly they moved on to daily use that was the main risk factor for developing the condition. The women who moved on to daily pot smoking had a greater increased risk for the onset of psychosis than the men.
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