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Childhood White Matter Linked to Teen Depression, With or Without ADHD

MHD card showing a hook-shaped bundle of glowing violet nerve fibers ending in a cut cross-section that a steel caliper is measuring, illustrating a study linking childhood white matter tract size to teen depression in youth with and without ADHD.

Brain scans taken at ages 8 to 13 were linked to depression scores years later, in teens with and without attention deficit hyperactivity disorder (ADHD). A 2026 study followed 76 children into adolescence and found that the size of one emotion-related wiring bundle in childhood statistically predicted later depression symptoms, regardless of ADHD diagnosis.1 Research …

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Autism With ADHD Linked to Weaker Brain Connectivity Than Autism Alone

MHD card with a row of five metronomes on a dark shelf against a deep teal background; three on the left swing in step with glowing teal arms while two on the right are dim and out of step, illustrating weaker brain connectivity in autism with ADHD.

Autistic young people who also have ADHD showed weaker resting brain connections than autistic peers without ADHD, according to a 2026 brain-imaging study of 69 people.1 Most autism-linked differences were shared by both autistic groups, but the extra ADHD diagnosis came with its own pattern, especially in a brain area that helps with attention and …

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