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The relationship between weekday sleep duration and chronotype differences in students aged 15–17 and sleep satisfaction, breakfast consumption, and regular exercise

Crossref DOI link: https://doi.org/10.1186/s40101-026-00446-6

Published Online: 2026-09-10

Update policy: https://doi.org/10.1007/springer_crossmark_policy

Authors

Oshita, Kazushige https://orcid.org/0000-0002-8049-1174
Ishihara, Yujiro https://orcid.org/0009-0000-3226-2230
Horai, Takeshi

Uno, Tadashi https://orcid.org/0009-0004-3442-7886
Murai, Satoki https://orcid.org/0009-0008-8105-9157
Funding

Funding for this research was provided by:

Wesco Science Foundation
License Information

Text and Data Mining valid from 2026-09-10

Accepted Manuscript valid from 2026-09-10
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Article History

Received: 15 July 2026

Accepted: 7 September 2026

First Online: 10 September 2026

Declarations

Ethics approval and consent to participate: All study participants and their parents provided informed consent, and the study design was approved by the Research Ethics Committee of the Okayama University of Science (approval number 7–7).

Consent for publication: Not applicable.

Competing interests: The authors declare no competing interests.

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