A study published by the American Journal of Epidemiology found that cannabis consumption may actually increase cognitive function in middle-aged individuals. The study also found the current illicit drug use – including LSD, magic mushrooms, cocaine and ecstasy – had no negative effect on a person’s cognitive function.
For the study, roughly 9,000 participants were surveyed at age 42 on their drug use, and then surveyed again at age 50, and were tested using various cognitive functioning tests. Researchers found that those who had a history of, and currently used illicit drugs (with cannabis by far being the most popular), performed either as well, or better in these test.
Researchers found that “A positive association was observed between ever (past or current) illicit drug use and cognitive functioning.”
The study, which was conducted by the School of Medicine at King’s College London, and first published online in December, 2011, can be found by clicking here.