Psychiatric symptoms caused by cannabis constituents: a systematic review and meta-analysis



Cannabis is one of the most widely used psychoactive substances worldwide, with 6–7% of the population in Europe and 15·3% of the population in the USA using it each year. There is a global trend towards decriminalisation and legalisation, with 11 US states, Canada, and Uruguay now permitting the sale and recreational use of cannabis in addition to its medicinal use. Given the projected increase in rates of cannabis use,

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  • Cerdá M
  • Wall M
  • Feng T
  • et al.
Association of state recreational marijuana laws with adolescent marijuana use.