How Cannabis Use May Influence Brain Health in Older Adults

Wed, 15 Apr 2026 14:37:00 +0200

As marijuana use becomes more socially accepted and legal across more U.S. states, researchers are looking closely at how cannabis impacts the brain—particularly in older adults. Studies suggest that cannabis may affect brain function differently depending on age and frequency of use. For aging individuals, cannabinoids could have both beneficial and potentially harmful outcomes. Some research points to neuroprotective effects, possibly reducing inflammation and slowing certain aspects of cognitive decline. Other studies, however, note possible negative consequences, such as memory lapses, slower reaction times, and difficulty with focus. Scientists continue to debate how much of these changes come from long-term THC exposure versus general aging processes.

Experts emphasize moderation and awareness of dosage, particularly because older adults are more likely to combine cannabis with prescription medications. This combination can alter response times, balance, and overall mental clari