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ADHD reframed as a circadian rhythm disorder in new paper

Original: ADHD as a circadian rhythm disorder: evidence and implications for chronotherapy (2025)

A 2025 paper in Frontiers in Psychiatry argues that ADHD should be understood partly as a circadian rhythm disorder, reviewing evidence that people with ADHD commonly show delayed sleep timing and disrupted melatonin rhythms. The authors discuss chronotherapy — timed light exposure, melatonin and adjusted schedules — as a potential complement or alternative to stimulant medication. Readers are debating whether the evidence is strong enough to change clinical practice.

Why now: A new academic paper makes a provocative reclassification of ADHD with treatment implications, sparking discussion.

Frontiers in PsychiatryADHDchronotherapycircadian rhythm

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