A large-scale study identified 254 genetic variants that shape the volume of key brain regions responsible for memory, motor control, and behavior. Researchers analyzed DNA and brain scans from nearly 75,000 people, uncovering links between these variants and conditions like ADHD and Parkinson’s disease.

A new survey reveals that 25% of adults in the U.S. suspect they may have undiagnosed ADHD, though only 13% have consulted a doctor. Social media has driven greater awareness, especially among younger adults, but experts warn of the risks associated with self-diagnosis.