Loneliness, insomnia symptoms, social jetlag, and vitamin D deficiency in relation to mental health problems in Japanese female university students: a cross-sectional study

Loneliness, insomnia symptoms, social jetlag, and vitamin D deficiency in relation to mental health problems in Japanese female university students: a cross-sectional study

Abstract Background Vitamin D deficiency is highly prevalent among Japanese female university students. Vitamin D deficiency is associated with physical and mental health problems, including sleep disorders. This study aimed to clarify the relationship between vitamin D deficiency and sleep and ment...

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Bibliographic Details
Main Authors: Nodoka Yamashita, Shioka Ishii, Yoriko Kotoku, Takuya Shuo, Hiromi Eto, Hideaki Kondo
Format: Article
Language:English
Published: BMC 2025-07-01
Series:Journal of Physiological Anthropology
Subjects:
Insomnia
Loneliness
Mental health
25-hydroxyvitamin D
Social jetlag
Vitamin D
Online Access:https://doi.org/10.1186/s40101-025-00403-9
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