Roughly 15.5 million U.S. adults—about 6%—are now living with an ADHD...

https://tiny-wiki.win/index.php/Adult_ADHD_vs._Sleep_Deprivation:_Can_Bad_Sleep_Mimic_Neurodivergence%3F

Roughly 15.5 million U.S. adults—about 6%—are now living with an ADHD diagnosis, with many individuals identifying their neurodivergence later in life. However, securing consistent support remains a significant hurdle. Recent data shows that 71