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A vast amount of scientific research has shown that heavy marijuana use negatively affects smokers' learning abilities and social skills, causing problems in their daily lives and compounding their existing problems.
The National Institute on Drug Abuse has surveyed and compiled 11 scientific research studies that have demonstrated that heavy marijuana use, defined as smoking marijuana 27 days in the past 30 days, has a significant impact on users' ability to learn, remember what they learned and function in society.
According to these researchers, heavy marijuana use can:
Daily marijuana use has been shown to:
These are some of the findings from research of heavy marijuana users in the workplace:
According to the NIDA, the conclusion that can be drawn from this scientific research is: someone who smokes marijuana every day may be functioning at a reduced intellectual level all of the time, even during periods of brief abstinence.
The good news for heavy marijuana users is the same research shows that cognitive abilities begin to return after four weeks, even after long-term daily use of the drug.
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