Does late sleep promote depression?

Henrik Oster*

*Corresponding author for this work
1 Citation (Scopus)


It has long been known that jetlag has detrimental - although usually transient - effects on cognitive functions and mood. A recent study by Levandovski et al. now shows that a more chronic version of temporal misalignment, so-called social jetlag, is associated with higher depression scores in rural populations. In a cross-sectional study on a well-defined cohort of ethnically homogenous Brazilian immigrants, the authors found that desynchrony between sleep-wake rhythms and internal circadian time was correlated with higher depression scores. These data suggest that sleep timing has a stronger impact on mood and well-being than previously thought and could be used as a predictor of depression risk.

Original languageEnglish
JournalExpert Review of Endocrinology and Metabolism
Issue number1
Pages (from-to)27-29
Number of pages3
Publication statusPublished - 01.01.2012


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