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Teen Cannabis Use Rises in Canada Post-Legalization, Sparking Health Concerns

Ana Fernanda Reporter / Updated : 2025-04-28 06:13:15
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Toronto, Canada - A new study published in the medical journal 'AMA Network Open' has ignited debate over Canada's 2018 nationwide legalization of recreational cannabis for adults. The research reveals a significant surge in cannabis consumption among Canadian adolescents following the policy change, with usage rates increasing by 26% and edible consumption jumping by a concerning 43%.

Canada became the second nation globally to fully legalize cannabis, following Uruguay. The landmark legislation first permitted the use of dried cannabis for adults and subsequently extended to include the sale of edibles and extracts across all provinces except Quebec by 2019. This unified national approach stands in contrast to the United States, where cannabis laws vary considerably from state to state.

The legalization has demonstrably fueled a substantial expansion of the Canadian cannabis market. Valued at CAD 6.4 billion prior to legalization, the market ballooned to CAD 10.8 billion by 2023. The retail landscape also underwent a dramatic transformation, with the number of cannabis stores skyrocketing from 182 in late 2018 to over 3,300 operational outlets in the first half of 2023.

Data from a 2021 Statistics Canada survey underscores this trend. The survey indicated that 22% of Canadians aged 15 and older had used cannabis within the preceding year, a stark increase from 5.6% in 1985 and 14.8% in 2017. The rate of increase has clearly accelerated since legalization.

Age-specific data from 2021 further highlights the prevalence of cannabis use among younger demographics. Individuals aged 18-24 exhibited the highest usage rate at approximately 40%, followed by 15.6% among 15-17 year-olds, 18.3% among 25-44 year-olds, and 8.2% among those aged 65 and older.

The 'AMA Network Open' study posits that legalization may have inadvertently increased accessibility to cannabis for individuals under the legal age of 18. The researchers suggest that the legal framework may have contributed to a perception among adolescents that cannabis is less harmful than before. This normalization of cannabis use is a key concern for public health experts.

The findings have prompted anxieties regarding the potential long-term health and addiction consequences for young cannabis users. Hai Nguyen, a pharmacy professor at Memorial University of Newfoundland, emphasized the significance of the study in light of existing research on the detrimental effects of adolescent cannabis use.

Neurologist Joshua Gowin echoed these concerns, stating that initiating cannabis use during adolescence significantly elevates the risk of developing a substance use disorder. "The earlier the onset of cannabis use, the more challenging it becomes to alter its course," he warned. Gowin also cited studies indicating that early and heavy cannabis use can negatively impact crucial brain development during adolescence.

The U.S. Centers for Disease Control and Prevention (CDC) corroborates these risks, noting that cannabis can impair brain regions responsible for learning, decision-making, and emotional regulation. Furthermore, early exposure to cannabis has been linked to an increased likelihood of developing long-term mental health issues such as depression and schizophrenia in adulthood.

Professor Nguyen stressed the critical need for policymakers to carefully consider the delicate balance between providing access for adults and safeguarding adolescents from potential harm. This study adds to a growing body of evidence suggesting that the unintended consequences of cannabis legalization on youth deserve close scrutiny and potential policy adjustments.

While medical cannabis has gained legal status in over 56 countries worldwide, including the United States, the United Kingdom, Germany, and Australia, the Canadian experience underscores the complex interplay between legalization, accessibility, and public health, particularly concerning vulnerable adolescent populations. The findings may offer valuable lessons for other nations considering or having already implemented similar cannabis policies.

[Copyright (c) Global Economic Times. All Rights Reserved.]

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Ana Fernanda Reporter
Ana Fernanda Reporter

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