A review article published in the journal Epidemiologia describes the impact of cannabis use on mental health among Australian and American youth.
Cannabis has a century-old history of use for medical, spiritual, and recreational purposes. Its popularity is increasing among young people worldwide, reflecting a global prevalence of 2.8%.
The estimated prevalence of cannabis use among youth in the United States is 7.1%, making it the second-most used substance after alcohol. In Australia, cannabis use prevalence is about 34% among young people aged 14 years and above.
The use of cannabis is increasing globally because of the general perception of its harmless nature and lack of dependence. However, a large pool of evidence indicates the negative health impact of long-term and frequent cannabis use.
The psychoactive compound 9 delta-tetrahydrocannabinol (THC) present in cannabis is primarily responsible for adverse mental health outcomes among users. Cannabis also contains some beneficial bioactive compounds, including cannabichromene (CBC), which is known to have pain-relieving, neuroprotective, and anti-inflammatory properties.