Cannabis use increases risk of psychosis
Thursday 3rd March, 2011
Cannabis use during teenage years, or into young adulthood, increases the risk of psychosis, according to new research.
Researchers from Germany, the Netherlands and the Institute of Psychiatry in London examined data of over 1,900 people aged 14-24 and found that those who did not use cannabis at the start of the study but went on to use it developed a higher risk of psychotic symptoms. Those who used the drug from the start of the study and continued to do so had an increased risk of psychotic experiences.
The findings, which were published in the British Medical Journal, concluded that cannabis was a risk factor in development of incident psychotic symptoms but there was no evidence found to suggest that psychotic symptoms led to later cannabis use.
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