Abstract
BACKGROUND: Cannabis, the most consumed illicit drug globally, has been legal for non-medical use in Canada since 2018. Problematic internet use is considered a behavioral addiction involving excessive online activities (e.g., social media, video watching), which can cause social isolation, family issues, psychological distress, and even suicide ideation. Studies mainly conducted with adolescents indicate a link between cannabis use disorder and problematic internet use. METHODS: This exploratory study with a qualitative component aims to investigate the experiences of adult cannabis users in Quebec regarding their internet use and cannabis consumption. Data were collected via an open-ended question in a self-reported online questionnaire assessing the participants’ perceived impact of cannabis consumption and internet use on their lives. The 1,388 responses to the open-ended question were subjected to a thematic analysis. RESULTS: The analysis yielded four main themes: (1) no impact and no link, (2) link between cannabis consumption and internet use, (3) psychological and physical health and (4) lifestyle habits. Some participants noted a direct association between cannabis use and increased online activity, including online pornography use. The participants experienced both positive and negative effects from cannabis consumption and internet use. Many reported benefits, such as relaxation, positive emotions, improved mental skills, and pain relief, while others experienced negative impacts, such as increased anxiety, procrastination, social isolation, and impaired cognitive functions. Additionally, these behaviors affected aspects of their daily lives, including finances, sleep, eating habits, and relationships. CONCLUSIONS: This study provides insights into the participants’ experiences and reflects the aspects they considered essential to share regarding cannabis consumption and internet use. CLINICAL TRIAL NUMBER: Not applicable. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s40359-026-04419-3.