Violet light could improve sleep quality and blood glucose levels in healthy individuals: A pilot study

• Tomonobu Kato ,

  Roles Conceptualization, Data curation, Formal analysis, Investigation, Writing – original draft, Writing – review & editing

  * E-mail: TomonobuKato@keio.jp (TK); mitsukura@keio.jp (YM)

  Affiliation Faculty of Science and Technology of Keio University, Yokohama, Kanagawa, Japan

  https://orcid.org/0000-0002-9508-0714

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• Yasue Mitsukura

  Roles Funding acquisition, Writing – review & editing

  * E-mail: TomonobuKato@keio.jp (TK); mitsukura@keio.jp (YM)

  Affiliation Faculty of Science and Technology of Keio University, Yokohama, Kanagawa, Japan

  https://orcid.org/0000-0001-5575-8589

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