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flag NIH study finds brain differences in teens who used substances before age 15, present even in childhood.

flag A recent NIH study on nearly 10,000 adolescents found that those who used substances before age 15 had distinct brain structure differences compared to those who did not. flag Many of these differences were present in childhood before any substance use, suggesting a potential role in the risk of substance use later in life. flag The study identified five global and 39 regional brain structural differences, though further research is needed to understand their impact on behavior.

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