Use of marijuana is increasing among adults but decreasing in teens

  • In past decade more adults aged 18 and older use cannabis, experts say
  • 23 US states currently have laws legalizing some form of marijuana
  • Experts say while adult use has risen, teenage use has decreased
  • But warn, teenagers perception of the drug has fallen, raising the risk more young people will turn to cannabis in the future
  • Drug is more widely available in California and more drivers now test positive for it – the state has