[thedoc (OP)]

sam harvey  asked the Naked Scientists:
   
Hi Science Night

Many people use cannabis without any serious harm, apart from over consuming chocolate or rambling in a boring way about the true meaning of album covers. However, some people can suffer serious psychosis. It is possible to develop a test that people to identify those who are at high risk of harm from cannabis use?

Many thanks
Sam Harvey

What do you think?