Cannabis use produces persistent cognitive impairments: meta review (addictionjournal.org)

Article summary

A meta-analysis study found that cannabis use is associated with persistent cognitive impairments, particularly in areas such as executive functions, verbal learning and memory, and processing speed. The study suggests that early use of cannabis is correlated with worse outcomes, but those who started later in life were still associated with deficits. The cognitive impairments were observed in heavy cannabis-using youths. The study's findings have implications for the potential risks of cannabis use, particularly among young people.

Main themes

• cannabis use and cognitive impairment
• creativity and productivity
• medical benefits and risks
• work performance and daily life
• individual variability and moderation
• relaxation and enjoyment

What commenters say

• Some people believe that cannabis use can have positive effects on creativity and productivity, despite potential cognitive impairments.
• Others argue that the benefits of cannabis use, such as stress relief and improved mood, outweigh the potential risks.
• A few commenters suggest that cannabis use can be beneficial for individuals with certain medical conditions, such as multiple sclerosis.
• Some people think that operating at peak cognitive performance is not always necessary or desirable, and that cannabis use can be a useful tool for relaxation and enjoyment.
• Others disagree, arguing that cannabis use can have negative effects on work performance and daily life.
• Some commenters believe that the study's findings are not universally applicable, and that individual results may vary.
• A few people suggest that moderation is key, and that responsible cannabis use can minimize potential risks.