Brains Aged Faster In Every Condition Tested Except Autism And ADHD, Where The Effect Was Zero
A model trained on 45,900 healthy scans ranked nine disorders by how much older the tissue looked than the birth certificate. Alzheimer’s led at d = 0.97, combined alcohol and tobacco use at 0.84 — and autism and ADHD came in at 0.06 and 0.01, statistically indistinguishable from controls.