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Brown University Health


Bradley Hospital study shows teen cannabis use is linked to differences in developing brain regions

A new study from Bradley Hospital researchers shows that cannabis use during adolescence is associated with reduced dopamine-related neurophysiology and altered reward processing. The study found that teens who repeatedly used cannabis showed signs of reduced tissue iron levels in brain regions involved in motivation and reward.

SourceBrown University Health·JournalNeuropsychopharmacology·DateJun 4, 2026