"The Duration of a Cannabis High: Insights from Scientific Research"

A meta-analysis of 80 papers published in 2021 revealed that depending on factors such as consumption method and potency, cannabis impairment can last between three and 10 hours. Regular users may build up tolerance, making impairment less predictable. The findings suggest that laws and advisory information should focus on the period when users are most at risk, rather than solely on the presence of THC in the body. More research is needed to better understand the effects of THC, which can guide legislation and safety measures.