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Janet Burns
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To test the chemical's effect on brains of different ages, researchers put mice that were two months, one year, and 18 months old on a daily regimen of THC over the course of a month. The mice were then tested on their abilities to recognize familiar objects, and to navigate a water maze in known and new configurations. 

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The team plans to explore the potential impact of THC on older human brains with a clinical trial later this year, being one of few to focus on more aged subjects so far. Previous research with mice by the Universities of Bonn and Mainz also suggested that the brain's main cannabis receptor and neural pathways are closely related to brain health in later life, and seem to play a role in preventing brain degeneration when active.

Co-author Andras Bilkei-Gorzo told the Guardian“If we can rejuvenate the brain so that everybody gets five to 10 more years without needing extra care then that is more than we could have imagined.”


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