Marijuana smokers are at a definite risk of developing schizophrenia and psychotic symptoms in their teens compared to adults.

After an observational research conducted upon 3800 youngsters by the Researchers from Queensland Brain Institute, at the University of Queensland, they discovered that the ones who used the drug for six or more years were twice as likely to suffer from delusional disorders as those who never used it.

The findings stated that among the 1272 participants who had never used marijuana, 26 (2 per cent) were diagnosed with psychosis, while the 322 people who had used marijuana for six or more years, 12 (3.7 per cent) were diagnosed with the illness.

According to Dr. McGrath, a professor at the institute, this is the most convincing evidence that can be used as cannabis; the more likely you are to have symptoms of a psychotic illness.

Also an important finding of the study noted that apart from the implications for policy makers and health planners, it is hoped that the findings shall encourage further clinical and animal-model research to unravel the mechanisms linking cannabis use and psychosis.