‘Although there is a consistent (though weak) association, from longitudinal studies, between cannabis use and the development of psychotic illness, this is not reflected in the available evidence on the incidence of psychotic conditions. The most likely (but not the only) explanation is that cannabis – in the population as a whole – plays only a modest role in the development of these conditions.’
– ACMD report, 2007 p. 33
When comparing cannabis users with non cannabis users do we have a matched control group in terms of mental health and general emotional disposition?
What contribution might fear and illegality play, if any, (nothing to do with the substance) for people who regularly engage in a stigmatised hidden illegal activity from which a criminal record could serious damage the rest of their life?
See on www.release.org.uk