Teen Cannabis Use Linked to Disrupted Brain Reward Development
TL;DR Summary
A Brown University-led study with 81 adolescents (14–17) found that repeated cannabis use, especially high-potency products, correlates with lower brain tissue iron in dopamine-rich regions, signaling disrupted maturation of the dopamine system and reward processing. This first-of-its-kind MRI work suggests reduced dopamine-related neurophysiology in teens who use cannabis and highlights potential increased addiction vulnerability, warranting longitudinal follow-up to assess long-term outcomes.
- Cannabis Use Lowers Brain Iron and Dopamine Levels Neuroscience News
- 5 ways daily cannabis use can affect your body and mind The Washington Post
- Moderate Cannabis Use Has No Impact on Adult Brains Labroots
- Excessive cannabis use reduces dopamine levels according to new study Newsweed
- Chronic teen cannabis use may negatively impact brain's reward system, increase risk of addiction Brown University
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