From Japan to Europe: the importance to assess excessive daytime sleepiness in adults with ADHD symptoms

We read with great interest the article [1] by Ito, which presents the findings of a web-based study on the prevalence of excessive daytime sleepiness (EDS) and ADHD symptoms in adults with possible ADHD. Their findings show that the prevalence and severity of EDS in Japanese adults with ADHD symptoms are higher compared to those individuals classified as non-ADHD (9822 subjects). This study suggests that EDS and inattentive symptoms share a common underlying mechanism. We thank the authors for highlighting the importance of EDS in ADHD patients.

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