Abusing Cannabis Accelerates Premature Aging of the Brain, Says New Study

What is being called the largest study on brain imaging ever done has made some troubling consequences of heavy cannabis consumption.

A group of researches from Amen Clinic, Google, John's Hopkins University, University of California, Los Angeles and the University of California, San Francisco investigated 62,454 single-photon emission computed tomography (SPECT) brain scans taken from over 30,000 people to find out what speeds up brain aging. As a person ages, blood flow to the brain is restricted and certain medical conditions and habits can further reduce blood flow.

The top cause of brain aging was schizophrenia, which on average added four years to a person's brain age. Other medical conditions also ranked high on the list with bipolar disorder adding an average 1.6 years and ADHD adding 1.4. However, drug abuse also weighed heavily on a person's brain age with cannabis use disorder adding 2.8 years and alcoholism adding 0.6.


Drivers of Brain Aging. Credit: Daniel G. Amen

"Based on one of the largest brain imaging studies ever done, we can now track common disorders and behaviors that prematurely age the brain," said the study's lead author, Daniel G. Amen in a statement. "Better treatment of these disorders can slow or even halt the process of brain aging. The cannabis abuse finding was especially important, as our culture is starting to see marijuana as an innocuous substance. This study should give us pause about it."



Few other entrepreneurs in the cannabis space have their hands in quite as many ventures as Lorne Gertner. Currently dubbed the "godfather of the Canadian cannabis industry," Gertner told Civilized, "If we could live through normalization, we could change the world." Hailing from the fashion industry, this Toronto native says he's on a mission to "make the world a better place through cannabis and design excellence." The only catch is, well, normalizing cannabis — and that's where Gertner's keen eye for style comes in. "In the old days, you were going to be different or you were going to be normal," said Thom Antonio, Gertner's friend, creative director, and collaborator of 35 years.

Can we see some ID please?

You must be 19 years of age or older to enter.