As people age, changes in the brain can lead to declines in memory, learning, and overall cognitive function. In this study, researchers explored whether cannabinol (CBN)—a lesser‑known cannabinoid found in the cannabis plant—might help protect brain cells and improve cognitive performance in older animals. The research focused on how CBN affects synaptic function (the connections between brain cells) and mitochondrial health (the energy‑producing parts of cells), both of which tend to deteriorate with age.

In laboratory tests and animal models, the scientists found that CBN helped improve performance on memory and learning tasks compared with untreated older subjects. Measures of brain health showed improvements in how neurons communicated with each other, and mitochondrial function in the brain was more efficient in CBN‑treated animals. These findings suggest that CBN may help support cellular energy production and synaptic signaling, which are key processes for maintaining cognitive function as the brain ages.

While this research is still in early stages and was conducted in animals rather than humans, the results provide promising evidence that CBN has the potential to support aspects of brain health linked to age‑related cognitive decline. Further research, including studies in people, will be needed to better understand how CBN may contribute to cognitive wellness and whether it could be useful as part of supportive approaches to aging.

Source

Cannabinol (CBN) alleviates age‑related cognitive decline by improving synaptic and mitochondrial health (May 2025) Available through the National Library of Medicine (NIH): https://pmc.ncbi.nlm.nih.gov/articles/PMC12150171/