The Advisory Council on the Misuse of Drugs (ACMD), the Government's independent expert drug advisers, has assessed the evidence on the health harms of cannabis, including the risks to young people.
In its latest report, 'Cannabis: Classification and Public Health (2008)', the ACMD found that cannabis has a number of acute and chronic health effects and that prolonged use can induce dependence.
It also found a probable but weak causal link between psychotic illness, such as schizophrenia, and cannabis use. It further stated that whether this would become stronger with the wider use of higher potency cannabis (sinsemilla-sometimes referred to as 'skunk') was uncertain. There has been no decisive new research since the 2008 ACMD report.
The ACMD publishes its reports on the Home Office website available via the following link: