A study conducted by a group of researchers at theUniversityofNew South Wales-SchoolofPsychiatryinAustraliahas found out that using marijuana can increase the chances of having psychotic disorders.  The report showed that those that smoked marijuana at an earlier age developed signs of psychosis much earlier compared to those that did not smoke any. Furthermore, those that used other kinds of illegal drugs also had a faster development of symptoms and signs of psychosis.  Various ...