Cannabis = Young Brains & Improved Cognition

This should be breaking news and the lead story in every newspaper, broadcast and podcast and it would have been if the research studies had found that cannabis use causes brains to age and cognition to decrease.

BUT THEY DIDN’T – instead studies funded by the National Science Foundation and National Institutes of Health found cannabis use was correlated with “superior performance across multiple cognitive domains,” “associated with a deceleration of neural aging processes and the preservation of cognitive function in older adults,” and that cannabis users demonstrated brain network “characteristics typically associated with younger brains, along with enhanced cognitive abilities.”

Why am I not surprised than that this landmark study with its immense potential for the health and well-being of hundreds of millions of people has received just about zero media exposure. So if you needed any more reason to celebrate International 420 Day tomorrow on April 20, read on to learn about this research study that will reinforce your knowledge of why consuming cannabis is good for you - not mention why you should inform all your non-consuming friends.

The study was LARGE scale observing 37,929 individuals in the United Kingdom aged between 44 and 81 years old. The researchers from the Georgia Institute of Technology, Emory University, Georgia State University, University of Colorado, University of Chinese Academy of Sciences and Tri-Institutional Center for Translational Research in Neuroimaging and Data Science reported that cannabis users outperformed non-users on a broad array of cognitive tests finding that cannabis use may be linked to brain network patterns typically observed in younger individuals.

This large-scale study confirmed a smaller study conducted in 2016 by the Neuroscientific Discovery (MIND) program at McLean Hospital – Harvard Medical School’s largest psychiatric affiliate, that found MMJ patients exhibited an “increased speed in completing tasks without a loss of accuracy” along with a decrease in use of “conventional pharmaceuticals, notably opiate use” along with “reduced sleep disturbance, decreased symptoms of depression, attenuated impulsivity, and changes in some aspects of quality of life.”

Because of the large population size observed, the study will have a significant impact on the relation to cannabis and aging research as the study noted that “cannabis use may confer neurocognitive benefits in older adults by modulating the organization of functional brain networks.”

Additional support of the benefits of cannabis on cognition were published in the Dec. 11, 2025 Journal of Studies on Alcohol and Drugs with results showing that “Lifetime cannabis use was positively associated with regional brain volume in CB1-rich regions, including the caudate, putamen, hippocampus, and amygdala. Greater lifetime use was also linked to better performance in learning, processing speed, and short-term memory.”

In summary, these studies graphically demonstrate that the use of cannabis leads to superior cognitive performance, slowing of the neural aging process, neurogenesis and the development of features found in younger brains resulting in the maintenance and enhancement of cognitive abilities and function in older adults.

Noting that legalization, increased permissiveness, and the understanding of its therapeutic potential, especially for managing chronic pain and other health conditions associated with aging, the authors acknowledged that older adults are now the fastest-growing cohort of cannabis users.