tag:blogger.com,1999:blog-8154958470320881103.post4812035520009538804..comments2008-05-13T13:00:23.755+01:00Tracey Crouchhttp://www.blogger.com/profile/04777660753081641122noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-8154958470320881103.post-79102840672417141072008-05-12T18:58:00.000+01:002008-05-12T18:58:00.000+01:00"Those who use cannabis by the age of 15 are over three times as likely to develop psychosis"<BR/><BR/>Or, those who are later diagnosed with psychosis are three times as likely to have used cannabis in the past. Correlation does not imply causation.<BR/><BR/>Drug use, poverty, crime, abuse, and mental illness -- they are all typically related.<BR/><BR/>I notice that most of the musicians you mention in your next post are drug users. If the majority of famous pop/rock musicians have taken cannabis, perhaps drug use is the cause of creative excellence?<BR/><BR/>Statistics of that sort are a bit misleading anyway because the actual figures are small, which inhibits accurate analysis. Let's say that there was a type of mental illness that a typical person had a 3,000,000:1 chance of developing. Let's also say that a type of drug increases the chance that a person could develop that illness by three. The DM loves a stat like that, but this means that you still only have a 1,000,000 chance of developing the illness.Michael Reedhttp://www.unmusic.co.uknoreply@blogger.com