Cannabis teenagers have a higher risk of developing depression and suicidal thoughts as young people and need to be informed about these risks by parents and doctors, scientists say.
Approximately seven percent of cases of depression in adolescence can be avoided if cannabis use is eliminated, according to a review of mental health data among young people in the United States, the UK and Canada.
"Although the extent of the negative effects of cannabis may vary (s) it is not possible to predict the exact risk for any teenager, the widespread use of cannabis among younger generations makes it an important public health problem", study class queen Andreea Cypriani.
In Canada, more than 20% of young people aged 15 to 19 say they have used cannabis in the past year. In England, for those aged 11 to 15, about four percent say they have used cannabis in the last month.
Researchers said the results show that if cannabis use is eliminated, there will be about 400,000 fewer depression cases in 18 to 34-year-olds in the US, with 25,000 less in Canada and about 60,000 in the UK .
The study, published in JAMA Psychiatry magazine, includes 23,317 people from 11 international studies and looks at young people in depression, anxiety and suicidal thoughts.
Australian Associated Press