80% of women with ADHD report worsened symptoms premenstrually. A 2025 study reveals the estrogen-dopamine connection that diagnostic guidelines have ignored for decades.

A December 2025 Nature Neuroscience study identified the Homer1 gene as a key regulator of attention. It works the opposite of Adderall.

Brain scans of 5,795 children reveal stimulant medications work through motivation and wakefulness — not attention. A December 2025 Cell study rewrites the textbook.