Emerging research presents a nuanced view of cannabis use across different life stages. The Australian study reveals a potential tipping point around age 30, after which regular marijuana consumption associates with diminished life achievements. Participants who continued using showed lower educational attainment, reduced income levels, and poorer relationship outcomes compared to those who quit.
Professor Najman’s team analyzed decades of data from mothers and their children, creating an unusual but comprehensive dataset. While the study can’t prove causation, the correlation between persistent adult use and reduced success metrics raises important questions. The researchers speculate that early behavioral issues might create both drug use patterns and life challenges later on.
Notably, the findings contrast with some North American research showing neutral or even positive quality-of-life associations with cannabis. This discrepancy highlights how cultural context and legal status might influence outcomes. As global attitudes toward marijuana evolve, this study adds complexity to the conversation about responsible adult use.
