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Quality of sleep and anxiety are related to circadian preference in university students

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  • Victor Menezes Silva
  • Joedyson Emmanuel de Macedo Magalhaes
  • Leandro Lourenção Duarte

Abstract

Chronotype is a circadian phenotype expressed in the preference of individuals to perform their activities and sleep in specific phases along the day. The objective of the study was to identify anxiety levels, quality of sleep and different chronotypes of university students and investigate their possible relationships. This is a cross-sectional study with a quantitative approach, in which 103 undergraduate students answered the Morningness-Eveningness Questionnaire (MEQ) the State and Trait Anxiety Inventory (STAI) and the Pittsburgh Sleep Quality Index (PSQI). There is a relationship between chronotype, quality of sleep and anxiety in the investigated population. Evening chronotype students showed higher anxiety status and have poor sleep quality when compared with morning chronotype students. The high occurrence of anxiety levels and poor sleep quality in evening students may be a consequence of high academic demand in a shift incompatible with the phase delay of the circadian timing system of these individuals.

Suggested Citation

  • Victor Menezes Silva & Joedyson Emmanuel de Macedo Magalhaes & Leandro Lourenção Duarte, 2020. "Quality of sleep and anxiety are related to circadian preference in university students," PLOS ONE, Public Library of Science, vol. 15(9), pages 1-11, September.
    • Handle: RePEc:plo:pone00:0238514
    DOI: 10.1371/journal.pone.0238514
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