http://news.independent.co.uk/uk/health_medical/article2368994.ece It's an interesting article with a lot of very recent findings. Makes you think twice about the whole legalizing pot issue. If you don't want to read the whole article, this blurb pretty much sums it up: "The link between cannabis and psychosis is quite clear now; it wasn't 10 years ago." Many medical specialists agree that the debate has changed. Robin Murray, professor of psychiatry at London's Institute of Psychiatry, estimates that at least 25,000 of the 250,000 schizophrenics in the UK could have avoided the illness if they had not used cannabis. "The number of people taking cannabis may not be rising, but what people are taking is much more powerful, so there is a question of whether a few years on we may see more people getting ill as a consequence of that."