Sydney: Teens who smoke marijuana are at a greater risk of developing schizophrenia and psychotic symptoms in the future, a new study has found.
According to the authors, the study was the first to look at sibling pairs to discount genetic or environmental influence. ````This is the most convincing evidence yet that the earlier you use cannabis, the more likely you are to have symptoms of a psychotic illness,” the Sydney Morning Herald quoted Dr McGrath, a professor at the institute, as saying in a statement. McGrath added: ````The message for teenagers is: if they choose to use cannabis they have to understand there`s a risk involved.```` The study noted: ````Apart from the implications for policy makers and health planners, we hope our findings will encourage further clinical and animal-model research to unravel the mechanisms linking cannabis use and psychosis.” The research has been published online by the Archives of General Psychiatry. ANI
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