Does smoking weed really kill your brain cells? The University of Louisville debunks the infamous myth.

Article by CannabisWiki


  The next time your mother or anyone else tells you that smoking will make you stupid, tell them that researchers from the University of Louisville don’t agree. A study that came out in January 2015 proved to the world that weed does not kill your brain cells. The study involved an MRI brain scan on 29 adults and 50 teens who used marijuana daily, and the same amount of people who don’t use it.

“Groups were matched on a critical confounding variable, alcohol use, to a far greater degree than in previously published studies,” the abstract states. “We acquired high-resolution MRI scans, and investigated group differences in gray matter using voxel-based morphometry, surface-based morphometry, and shape analysis in structures suggested to be associated with marijuana use, as follows: the nucleus accumbens, amygdala, hippocampus, and cerebellum. No statistically significant differences were found between daily users and nonusers on volume or shape in the regions of interest.”

That is a what a researcher from the team had to say. The team stated that they were shocked to find that there was no difference in the MRI scan between people you used marijuana, and people who didn’t. They even say there wasn’t even a “modest effect” found in the study. That claim was debunked, just like the claim of cannabis effecting your IQ.

Make sure to check out a few facts about marijuana use during pregnancy

If back in the 80’s if you asked someone will smoking weed kill your brain cells, they would’ve showed you the infamous commercial of the egg frying in the pan and saying “This is your brains on drugs”. Further research on the subject lead us to a article on an Italian study from 2013. The study stated that a chemical in cannabis known as cannabichromene (CBC) can actually boost the functionality and availability of developing brain cells.

Read full article here.

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