Latent profiles of cyberchondria among nursing interns: the differential mediating role of health anxiety in the relationship between work stress and profile membership.

Cannabis ranks among the most widely used psychoactive substances globally, following alcohol and tobacco (). In 2022, an estimated 228 million people—representing 4.4% of the global population aged 15 to 65—used cannabis, with a higher prevalence in the Americas (11.4%) and Oceania (11.8%) (). While cannabis use is illegal in several countries, its recreational use has drawn increasing attention in the public health and regulatory spheres (). In Canada, the legalization of cannabis for recreational use came into effect in 2018 under the Cannabis Act. The Act aimed to keep cannabis out of the hands of youth, prevent profits from going to criminals, and protect public health and safety by providing legal access for adults (). Since then, the prevalence of cannabis use has risen: 22% of Canadians reported use in 2018, compared to 26% in 2024 (). While most recreational use has no major consequences, a significant proportion progresses to problematic use, which can lead to cannabis use disorder (; ). Cannabis use disorder is defined in the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) as a problematic pattern of cannabis use leading to clinically significant impairment or distress over a 12-month period (). A key feature is continued use despite negative physical (e.g., respiratory issues), psychological (e.g., worsening mental health), or social (e.g., interpersonal conflicts) consequences (). In 2016, approximately 22 million people worldwide were affected by cannabis use disorder (). People who use cannabis have a one-in-five risk of developing the disorder (). In Canada in 2019–2020, 4.7% of past-year cannabis consumers aged 15 years or older were considered to experience impaired control and might have been at risk of cannabis use disorder ().