ADHD and autism showed no signs of accelerated brain aging. Alzheimer’s disease ranks first. Alcohol and tobacco dependence rank ahead of schizophrenia, bipolar disorder, and depression. Study based on nearly 49,000 MRI brain scans.

ADHD and autism showed no signs of accelerated brain aging. Alzheimer’s disease ranks first. Alcohol and tobacco dependence rank ahead of schizophrenia, bipolar disorder, and depression. Study based on nearly 49,000 MRI brain scans.