CONCLUSIONS: Young adults with ADHD exhibit heightened vulnerability to sleep deprivation, reflected in elevated subjective sleepiness. Stimulant medications effectively attenuate sleepiness in ADHD participants, aligning their alertness levels with those of neurotypical controls. These findings support models of ADHD involving arousal dysregulation and highlight the dual therapeutic role of stimulants in managing both attentional deficits and sleep-related impairments.
